Browse the source records

Browse 459 released source records below. Every photo provides its credit and source after your guess; unreleased daily photographs stay out of this list to keep the challenge fair. Opening these records may reveal answers to practice photographs.

261–280 of 459 source records
  • Inside a giant tunnel excavation

    Harry Pot / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1953-06-04; reviewed as 1953, not upload date or a contextual building year. Anefo caption names tunnel construction at Velsen and the frozen category identifies Velsertunnel. Q2670844 locates the crossing; 0.75 km covers excavation and approaches on both banks without claiming an exact camera point. Workers, dense reinforcement and cranes are distinct in the display image. Archival tonal range and original framing retained.

  • A slippery day at the lock works

    Harry Pot / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1957-12-16; reviewed as 1957, not upload date or a contextual building year. Anefo caption explicitly names Schutsluis te Hagestein. Q2242127 records the lock and weir complex; selected lock coordinate 51.99214,5.13441 with 0.5 km allowance covers its construction footprint. The slipping figure, slick surface and reinforcement are sharp. No injury is inferred from the pose.

  • A send-off beneath the World Trade Center

    Rob Croes / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1987-04-14; reviewed as 1987, not upload date or a contextual building year. World Trade Center lettering is visible and the frozen source category explicitly names Amsterdam WTC. Q2787161 locates that complex, not Japan or Schiphol WTC. A 0.5 km allowance covers its forecourt. Building lettering, performers and flags are clearly readable.

  • Market day at the Grand Socco

    Joost Evers / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1967-08-09; reviewed as 1967, not upload date or a contextual building year. Grand Socco is legible on the wall plaque and Bab Fahs is visible behind the cart. Q5595107 fixes the named square; 0.35 km covers the gate and adjoining shop frontage, not a Tangier city default. QNL independently identifies Bab Fahs as the entrance to Grand Socco. Inspected shop signs, van, cart, cloaks and gateway; fine architectural detail remains readable and no capture year is printed.

  • New tram tracks for the RAI

    Rob Bogaerts / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1981-04-06; reviewed as 1981, not upload date or a contextual building year. Anefo caption names the new line to RAI; frozen Europaplein category and visible RAI tower support this frontage. Q2875188 supplies a coordinate in Europaplein. A 0.5 km allowance covers tram works around the square, not a claim that the later metro existed in 1981. Rails, RAI tower, advertisements and car shapes are legible.

  • A protest in the departure hall

    Hans van Dijk / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1982-04-05; reviewed as 1982, not upload date or a contextual building year. Anefo caption explicitly identifies Schiphol. Visible KLM departure counters match central passenger facilities in use after 1967. Q9694 anchors that terminal; 0.75 km covers the hall footprint without claiming an exact counter. Banners, seated protesters, airline signage and departure boards are detailed. Text concerns exploitation; no graphic or sexual activity is depicted.

  • Banners outside Amsterdam City Hall

    Van Smirren / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1982-04-21; reviewed as 1982, not upload date or a contextual building year. Frozen caption specifies the former city hall on Oudezijds Voorburgwal. OSM node 318453539 is The Grand at number 197; the hotel’s institutional history confirms its city-hall use. Visible brick wing matches the frontage. A 0.3 km allowance includes the street and complex. Banners, cyclist and brick facade remain legible. No event year is printed across the scene.

  • An arrival in the old airport hall

    Harry Pot / Anefo / Nationaal Archief

    CC0
    How this photo was verified

    Frozen source revision records capture date 1962-06-08; reviewed as 1962, not upload date or a contextual building year. Anefo caption explicitly identifies arrival at Schiphol. The airport’s timeline places pre-1967 passenger facilities at Schiphol-Oost, anchored by Q2527753. Exact counter unresolved; disclosed 2.5 km airport allowance covers the historical site and central terminal. Large hat, luggage and airline service lettering remain distinct. No answer date appears in the frame.

  • Queueing for a new Metro

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 5 September 1969 date QS:P571,+1969-09-05T00:00:00Z/11; reviewed as 1969, not upload date or a contextual building year. Frozen caption explicitly identifies ticket buying at Chapultepec station; partial station lettering is visible. Q3357035 locates this station, not the nearby castle or park centre. A 0.35 km allowance covers entrances and the underground hall. Ticket booth, queue, station lettering and clothing are readable under the original dark exposure.

  • Cars outside Mercado Juárez

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date Taken on 17 June 1950; reviewed as 1950, not upload date or a contextual building year. Original archive title specifies Mercado Juárez at Chapultepec and Bucareli. OSM shared junction node 30385298 fixes that intersection. Visible market name confirms the subject; 0.4 km covers the historical market frontage, not another present-day market with the same name. Market lettering, cars, tram rails and overhead wires are clear. Original 1943 building inscription retained and distinguished from the 1950 capture date.

  • Human-rights banners fill the square

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 1993-08-10; reviewed as 1993, not upload date or a contextual building year. Archive title explicitly names Zócalo. The southern civic buildings and avenue between them corroborate the square. Q1348507 anchors the plaza with a 0.4 km allowance covering the crowd and edges. Faces, umbrellas, banners and architectural details remain distinct; no capture date is printed.

  • The theatre before its dome was finished

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 1928; reviewed as 1928, not upload date or a contextual building year. Original inscription IX-28 928 and catalogue November 28 disagree on month; both support 1928. Year precision only; dated print is practice-only. Visible facade uniquely matches Palacio de Bellas Artes and archive title identifies Teatro Nacional. Q1139081 gives the building point; 0.35 km covers the facade and facing street. Institutional history confirms that the exterior dome covering remained unfinished during the prolonged construction period. Stonework, steel dome and construction materials are crisp. Original album mount and IX-28 928 inscription retained; catalogue says November, so no exact day/month claim.

  • Resurfacing the Zócalo

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 1958-08-22; reviewed as 1958, not upload date or a contextual building year. Archive title names works in Zócalo. Twin Metropolitan Cathedral towers and attached Sagrario confirm the northward view across the square. Q1348507 and 0.4 km allowance cover the works and cathedral frontage. Workers, road tools, broken surface, cathedral and period vehicles remain clear.

  • A pause beside the fountain

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 1958-07-05; reviewed as 1958, not upload date or a contextual building year. Archive title explicitly names Zócalo fountains; southern civic buildings and central avenue match the view. Q1348507 anchors the historical square; 0.4 km includes the former fountain rather than looking for a relocated fountain today. Fountain, clothes, cars and arcades are legible. Small emulsion loss at the top edge does not obscure the subject.

  • World Cup joy in the Zócalo

    Unknown photographer / Museo Archivo de la Fotografía / Gobierno CDMX

    CC0
    How this photo was verified

    Frozen source revision records capture date 7 June 1986 date QS:P571,+1986-06-07T00:00:00Z/11; reviewed as 1986, not upload date or a contextual building year. Source caption explicitly names Zócalo and the frozen Location template gives its northern edge. Cathedral enclosure and square facades support that point; 0.4 km covers the square and bordering lanes. Flags, car, surrounding buildings and souvenir branding remain clear despite authentic motion softness. Practice avoids a possible year giveaway.

  • At the gates to the Johnsonville train

    F. G. Tingay / New Zealand Railways / Archives New Zealand

    CC BY 2.0
    How this photo was verified

    Frozen source revision records capture date 1953; reviewed as 1953, not upload date or a contextual building year. Archives NZ B2203 explicitly says Johnsonville Platform Wgtn [Wellington]. The large concourse, clocks and partial Johnsonville destination board fit Wellington station, Q505487. A 0.5 km allowance covers its concourse and platforms; Johnsonville station is rejected as a destination-label error. Workers, metal gates and station clocks are sharp; passing passengers retain natural motion blur. Negative identifier B2203 is not a date.

  • Steam at the old Main Street station

    J. F. Le Cren / New Zealand Railways / Archives New Zealand

    CC BY 2.0
    How this photo was verified

    Frozen source revision records capture date 1953; reviewed as 1953, not upload date or a contextual building year. Archives NZ B2315 specifies a southward view from the station in 1953. Manawatū Heritage identifies the 1890–1963/64 Main Street station and Domain Street directly opposite it. OSM Main/Domain node 1726115723 anchors that historical segment; 0.5 km covers platforms toward Pitt Street and the depot view. Modern station is not used. Locomotive, arched bridge, rails and signals are clear; original negative edges retained.

  • Suiting up for the first shuttle attempt

    NASA

    Public domain
    How this photo was verified

    Frozen source revision records capture date Taken on 10 April 1981 Date, time or both in the file Exif metadata are incorrect/invalid.; reviewed as 1981, not upload date or contextual building date. NASA caption corroborates 10 April 1981 first attempt; invalid EXIF ignored and 12 April launch date not substituted. NASA’s STS-1 countdown history reproduces this exact frame and places crew suit-up in the Operations and Checkout Building. Q7097807 locates that building; 0.4 km covers its footprint, not Pad 39A. Source explicitly flags invalid EXIF, so the NASA caption supplies the date. Crew, name patches, suits and equipment are clear. Mission identifiers are original clues and remain unaltered.

  • Reading the departures board

    Charles O’Rear / Environmental Protection Agency / US National Archives

    Public domain
    How this photo was verified

    Frozen source revision records capture date June 1974 date QS:P571,+1974-06-00T00:00:00Z/10; reviewed as 1974, not upload date or contextual building date. NARA 556071 explicitly names the information and ticket counter in Chicago Union Station. The listed Chicago-serving trains corroborate the terminal. Q1155989 with 0.4 km covers the station complex; no unsupported exact counter coordinate is claimed. Train names, Amtrak logos and information signs remain readable in the original warm slide; no colour reconstruction.

  • A rainy day outside Union Station

    Charles O’Rear / Environmental Protection Agency / US National Archives

    Public domain
    How this photo was verified

    Frozen source revision records capture date June 1974 date QS:P571,+1974-06-00T00:00:00Z/10; reviewed as 1974, not upload date or contextual building date. NARA 556077 explicitly identifies Chicago Union Station; its sign and columned headhouse are visible. Q1155989 anchors the station block; 0.4 km includes the exterior viewpoint and building, replacing the source’s broad Chicago coordinate. Station sign, column rhythm and car silhouette remain readable in the warm original slide. Rounded scan borders retained.

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