Subject
Causeways
106
Historic buildings
68
Churches
67
Streets
54
Cathedrals
39
Bridges
35
Towers
33
Castles & palaces
30
Architecture
28
Dwellings
26
Protestant churches
23
Harbors
18
Monuments & memorials
18
Ships
18
Plazas
17
Cliffs
13
Rivers
13
Canals
11
Courthouses
11
Hotels
11
Parks
9
Waterfalls
8
Lakes & ponds
7
Gardens
6
Bays (bodies of water)
5
Railroads
5
Steamboats
5
Beaches
4
Capes (Coasts)
4
Crosses
4
Railroad stations
4
Ruins
4
Abbeys
3
Barracks
3
Boats
3
Catholic churches
3
Cemeteries
3
City & town halls
3
Electric railroads
3
Forts & fortifications
3
Roads
3
Schools
3
Villages
3
Caves
2
City walls
2
Islands
2
Libraries
2
Meadows
2
Mountains
2
Round Towers
2
more ...