13 National Monuments

1. Nederlands Nationaal Monument
2. Stonehenge
3. National Museum of Singapore
4. Brecon Beacons National Park
5. Grand Canyon-Parashant National Monument
6. Old Ford Motor Factory
7. Upper Missouri River National Monument
8. New Delhi Taj Mahal
9. Craters of the Moon National Monument
10. Istana(singapore again)
11. Navajo National Monument
12. Mount Rushmore
13. White Sands National Monument (New Mexico)

13 colors that begin with B

1. Baby blue