Subject
- Biological stations3
- Dwellings3
- Recreation areas--Public use3
- Toilets3
- Barbecues (Fireplaces)2
- Baseball fields2
- Marine laboratories2
- Marine railways2
- Semi-enclosed spaces (Architecture)2
- Signs and signboards2
- Swimming pools2
- Trails2
- Barns1
- Bunk beds1
- Drainage1
- Electric lines1
- Footbridges1
- Fuelbreaks1
- Golf courses1
- Incinerators1