Spatial Coverage
- Adirondack Mountains Region (N.Y.)3
- Adirondack Mountains Region.1
- Adirondack Mountains region1
- Adirondack Mountains.8
- Adirondack Park (N.Y.)4
- Adirondack State Park (N.Y.)1
- Admiralty Island1
- Admiralty Island (Alaska)4
- Admiralty Island National Monument Wilderness (Alaska)1
- Adriatic Coast (Albania)1
- Adriatic Coast (Balkan Peninsula)3
- Adriatic Coast (Croatia)1
- Adriatic Coast (Italy )1
- Adriatic Coast (Italy)3
- Adriatic Sea26
- Adriatic Sea Region2
- Adriatic Sea Region.2
- Adriatic Sea.7
- Adunara Island (Indonesia)1
- Aegean Islands (Greece and Turkey)8
