Subject
Parks
Monuments & memorials
18
Bridges
17
Historic buildings
16
Waterfalls
12
Gardens
11
Dwellings
10
Hotels
10
Universities & colleges
9
Churches
7
Roads
7
Streets
7
Electric railroads
6
Cathedrals
4
Asylums
3
Lakes & ponds
3
Towers
3
Valleys
3
Architecture
2
Bays (bodies of water)
2
Boats
2
Capes (Coasts)
2
Castles & palaces
2
Convents
2
Harbors
2
Mills
2
Rivers
2
Barracks
1
City & town halls
1
Round Towers
1
Ships
1
Statues
1
Zoos
1