All puzzles added 7 March 2026
1012Guest A -1889 - Department of Agriculture, D.C.Koboldnot solved yetSolve puzzle
1012Guest A -1889 - Patent Office, Washington D.C.Koboldnot solved yetSolve puzzle
1012Guest A -1889 - Presidential Residence, Washington D.C.Koboldnot solved yetSolve puzzle
1012Guest A -1889 - Treasury Department, Washington D.C.Koboldnot solved yetSolve puzzle
1036Kimmel & Forster -1865 - Aerial view of Washington D.C.Koboldnot solved yetSolve puzzle
988Kretschmer W -1854 - Lyceum Georgsplatz, HanoverKoboldnot solved yetSolve puzzle
988Kretschmer W-1855 - Herrenhausen Castle, HanoverKoboldnot solved yetSolve puzzle
972Kretschmer W -1858 - Palm House HanoverKoboldnot solved yetSolve puzzle
975Lane FH -1836 - View Gloucester, MassachusettsKoboldnot solved yetSolve puzzle
1032Magnus C -1862 - Carver Barracks, Washington D.CKoboldnot solved yetSolve puzzle
1008Magnus C-1862 -Cliffurne Hospital, Washington DCKoboldnot solved yetSolve puzzle
966Magnus C-1862 - Mount Pleasant HospitalsKoboldnot solved yetSolve puzzle
975Magnus C -1864 - Douglas & Stanton HospitalsKoboldnot solved yetSolve puzzle
984Mitchell EH -1909 - San Francisco circa 1849Koboldnot solved yetSolve puzzle
1026Newsam A -ca1840 - Chinese collection, PhiladelphiaKoboldnot solved yetSolve puzzle
1014Osterwald G -1840 - View of HanoverKoboldnot solved yetSolve puzzle
988Osterwald G -1840 - View of Hanover-2Koboldnot solved yetSolve puzzle
1025Parsons CR -1879 - Bird's Eye View of BrooklynKoboldnot solved yetSolve puzzle
980Popular Graphic Arts -1880 - Baldwin HotelKoboldnot solved yetSolve puzzle
962Popular Graphic Arts -ca1845 - New York BayKoboldnot solved yetSolve puzzle
1015Queen JF -1850 - Fire in PhiladelphiaKoboldnot solved yetSolve puzzle
989Queen JF -1853 - View of St. Paul, MinnesotaKoboldnot solved yetSolve puzzle
1036Queen JF -1853 - York County Agricultural SocietyKoboldnot solved yetSolve puzzle
999Queen JF -1857 - Christ Church, GermantownKoboldnot solved yetSolve puzzle
992Queen OF -1858 - Lebanon Agricultural SocietyKoboldnot solved yetSolve puzzle
1050Queen JF -1858 - Point Breeze Park, PhiladelphiaKoboldnot solved yetSolve puzzle
1014Queen JF -1858 - West Philadelphia ManufacturingKoboldnot solved yetSolve puzzle
957Queen JF-1860 - Sisterhood of St. Joseph ChurchKoboldnot solved yetSolve puzzle
1026Queen JF -1862 - Citizens Volunteer HospitalKoboldnot solved yetSolve puzzle
1025Queen JF -1862 - Union Volunteer RefreshmentKoboldnot solved yetSolve puzzle
999Queen JF -1863 - Citizens Volunteer HospitalKoboldnot solved yetSolve puzzle
1040Queen JF -1863 - Satterlee Hospital, PhiladelphiaKoboldnot solved yetSolve puzzle
1056Queen JF -1864 - Central Mass BuildingKoboldnot solved yetSolve puzzle
962Queen JF -1864 - Mass, Sanitary CommissionKoboldnot solved yetSolve puzzle
986Queen JF -1865 - Citizens Volunteer HospitalKoboldnot solved yetSolve puzzle
1008Queen JF -1865 - General Hospital, Chestnut HillKoboldnot solved yetSolve puzzle
1008Queen OF -1867 - Doylestown Agricultural MechanicKoboldnot solved yetSolve puzzle
972Queen JF -1867 - Washington as a FreemasonKoboldnot solved yetSolve puzzle
1044Queen JF -1875 - Knights of PythiasKoboldnot solved yetSolve puzzle
980Queen JF -ca1852 - People's Agricultural SocietyKoboldnot solved yetSolve puzzle
1000Queen JF -ca1853 - Ruins of PittsburghKoboldnot solved yetSolve puzzle
972Queen JF -ca1863 - Diploma Agricultural Society,Koboldnot solved yetSolve puzzle
1024Queen JF -ca1863 - Diploma Farmers&Mechanics Inst.Koboldnot solved yetSolve puzzle
1015Queen JF -ca1863 - From plantation to battlefieldKoboldnot solved yetSolve puzzle
1025Schwabe B -1843 - Palace and new castleKoboldnot solved yetSolve puzzle
1025US Geological Survey -1915 - San Francisco 1915Koboldnot solved yetSolve puzzle
1036Walker E-1852 - St Paul's Cathedral, LondonKoboldnot solved yetSolve puzzle
975Walker E-1852 - Westminster Abbey, LondonKoboldnot solved yetSolve puzzle
