From scholastic to sepulchral - now under reconstruction.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The ghost town that ended up on Ebay.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Take a drunken tour inside the world's largest known geode.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Odd outsider art installations surround a Gold Rush-era ghost town.

Towering basalt columns, a creation of fire and ice.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.