This swampy lake that lies on the border of Texas and Louisiana is probably one of the moodiest natural wonders on this list.
The Crack and The Corkscrew are two otherworldly slot canyons that can only be visited with a native Navajo guide.
One of Alaska's most impressive icy landforms, the gargantuan Hubbard Glacier is six miles wide and reaches a height of 400 feet at its tallest point.
The Garden of the Gods, a National Natural Landmark near Colorado Springs, has towering red, pink, and white sandstone and limestone formations.
The kaleidoscopic Fly Geyser in the Black Rock Desert is a totally unique sight as it was actually formed due to a human error.
Crater Lake in Oregon is America's deepest lake at 1,943 feet, the caldera basin of a fallen volcano that filled with rain and runoff.
A vast area of protected wetland in southern Florida, Everglades National Park is an oasis for hundreds of plant and animal species.
A beautiful spot to splash around in summer, this natural swimming hole is just 20 miles west of the Texas state capital.