Subject
Historic buildings
316
Bridges
213
Churches
199
Streets
173
Castles & palaces
146
Cathedrals
141
Rivers
139
Dwellings
122
Towers
121
Lakes & ponds
116
Causeways
106
Harbors
84
Abbeys
78
Monuments & memorials
68
Boats
66
Islands
63
Cliffs
61
Architecture
60
Piers & wharves
59
Mountains
58
Ships
55
Hotels
54
Universities & colleges
54
Railroads
50
Waterfalls
49
Crosses
41
Round Towers
41
Plazas
39
Monasteries
38
Parks
35
Bays (bodies of water)
34
Roads
33
Beaches
31
Capes (Coasts)
31
Protestant churches
31
Ruins
28
Valleys
25
Railroad stations
21
Schools
20
Cemeteries
18
Villages
16
Courthouses
15
Steamboats
15
Canals
14
Catholic churches
11
Caves
11
Gardens
11
Tombs & sepulchral monuments
10
Walkways
9
Meadows
8
more ...