The Subway, Zion National Park The Subway is famous for its remarkable glowing colors, emerald pools, red slickrock, and the grueling hike to reach it. The hike is almost 5 miles each way, with a 1000 foot cliff to navigate, dozens of stream crossings, boulder scrambling, and wading across wet slickrock. In return for your troubles, you're treated to a phenomenal view of glowing reflected sunlight in the sandstone tunnel, carved by water over tens of thousands of years.
Toadstool Geologic Park, Nebraska Other-worldly geologic formations twist and turn under a passing thunderstorm in Toadstool Geologic Park.
Cottonball Basin, Death Valley National Park Evaporated puddles of water leave these salt "potholes" in a playa in Death Valley National Park. Rather intense rainstorms rage on in the distance.