If you ever get to Page, Arizona, make a point to visit the Antelope Canyons just outside town. They're on Navajo land and are some of the most spectacular weathered formations I've seen. Yes, so is the Grand Canyon, but these hidden "slot canyons" are almost impossible to find if you didn't know where they are and one of those unique pieces of the landscape that'll blow your mind. The narrow canyons, carved into the earth, are sometimes only as wide as a person and upwards of 100 feet high. Take the photography tour if you want to get some great shots.