Subject
Historic buildings
531
Churches
394
Streets
387
Universities & colleges
317
Parks
315
Cathedrals
272
Harbors
215
Bridges
141
Monuments & memorials
134
Castles & palaces
110
Hotels
83
Cemeteries
79
Ships
67
Galleries & museums
64
Piers & wharves
61
Catholic churches
54
Steamboats
50
Gardens
48
Hospitals
44
Barracks
43
Boats
41
Roads
40
Libraries
37
Rivers
28
Bays (bodies of water)
27
Dwellings
27
Plazas
23
Railroads
22
Schools
21
Electric railroads
20
Convents
19
Railroad stations
17
Towers
15
Abbeys
14
Beaches
13
Yachts
12
Asylums
10
Post offices
10
Islands
9
Waterfalls
9
Crosses
8
Lighthouses
8
Markets
8
Presbyterian churches
8
Antiquities
7
City & town halls
7
Golf
7
Architecture
6
Hills
6
Villages
5
more ...