Here's some good suggestions from a previous post by Terry Soloman:
1) Old Schools
2) City/Town Parks
3) Circus/Fair Sites
4) Old Churches
5) Old Homestead Sites
6) Swimming Holes and Areas
7) Picnic Groves
8) Athletic Fields
9) Scout Camps
10) Rodeo Arenas
11) Campgrounds
12) Ghost Towns
13) Beaches
14) Old Taverns
15) Roadside Rest Stops
16) Sidewalk Grassy Strips
17) Amusement Parks
18) Rural Mailboxes
19) Reunion Areas
20) Revival sites
21) Fort Sites
22) Winter Sledding Areas
23) Lookout/Overlook Sites
24) Church Supper Groves
25) Fishing Spots
26) Fishing Camps
27) Resorts
28) Old Barns and Outbuildings
29) Battle Sites
30) Band Shells
31) Racetracks
32) Rural Boundary Walls
33) Roadside Fruit and Vegetable Stands
34) Under Seaside Boardwalks
35) Flea Market Areas
36) Ski Slopes
37) Drive Ins
38) Canal Paths
39) Vacant Lots
40) Motels
41) College Campuses
42) Farmer Market Areas
43) Town Squares
44) Urban Yards and Backyards
45) Disaster Sites
46) Areas Around Skating Ponds
47) Hunting Lodges and Camps
48) Mining Camps
49) Railroad Grades, Stations and Junctions
50) Hiking Trails
51) Waterfalls
52) Rural Dance Sites
53) Lover's Lanes
54) Areas Adjacent to Historical Markers
55) Old Gas Stations and General Stores
56) Fence Posts
57) Chicken Houses
58) Bridges and Fords
59) Flower Beds
60) Playgrounds
61) Old Garbage Dumps
62) Cloth Lines
63) Military Camp and Cantonment Sites
64) Wells and Outhouses
65) Abandoned Houses and Structures
66) Areas where Old Trails Cross County or State Boundaries
67) Piles of Scraped Soil at Construction Sites
68) Old Stone Quarries
69) Areas Around Old Abandoned Cemeteries in the Forest
70) Junctions of Abandoned Roads (crossroads)
