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Subject (Region)
- United States[remove]195
- District of Columbia109
- Yellowstone National Park55
- Hot Springs National Park (Arkansas)43
- New Mexico Territory (1850-1912)39
- White House36
- Alaska, Department and District of (1867-1912)34
- Yosemite National Park (California)33
- Arizona Territory (1863-1912)30
- Sequoia National Park (California)30
- Utah Territory (1850-1896)30
- Indian Territory (1834-1907)28
- Great Britain26
- Washington Monument21
- Washington Aqueduct (District of Columbia)20
- California19
- Mount Rainier National Park (Washington)19
- Crater Lake National Park (Oregon)18
- Great Lakes18
- Annapolis, Maryland17