Region
United States
526
Afghanistan
12
Iraq
7
China
3
Outer space
3
Arizona
2
Arlington
2
Colorado
2
Florida
2
Grand Canyon National Park
2
Mexico, Gulf of
2
Northern Mariana Islands
2
Virginia
2
Arctic regions
1
Aurora
1
California
1
Denver
1
Las Vegas
1
Louisiana
1
Nevada
1
New Orleans
1
Orlando
1
Puerto Rico
1
Washington (D.C.)
1
Washington Metropolitan Area
1