Arizona The Grand Canyon is a testament to the earth's artistic powers, with its sprawling vistas and breathtaking colors.

For every Old Faithful and Grand Canyon of the Yellowstone, there's a host of other obscure places like The Gumper, Lactose ...

SUMMARY Belongs on List? Yes No Yellowstone's geysers and geothermic wonders like the Grand Prismatic Spring and Mammoth Hot Springs will captivate visitors of all ages. Families can also take in ...