« Previous
Next »
Subject (Region)
- Mississippi River49
- Great Lakes47
- District of Columbia32
- Washington Aqueduct (District of Columbia)23
- Alaska Territory (1912-1959)14
- Missouri River10
- Washington Monument10
- California8
- New York Harbor7
- White House7
- Yellowstone National Park7
- Ohio River5
- United States5
- Alaska, Department and District of (1867-1912)4
- Aqueduct Bridge (Potomac River)4
- Arkansas River4
- Europe4
- Arkansas3
- Cuba3
- Germany (to 1949; 1990- )3