The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

The fifth-longest natural arch in the world, and the longest outside China.

The largest island on the great salt lake is home to curious creatures and strange stories.

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

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.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

The land is home to swimming ponies and a legendary 18th-century treasure.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This tiny Hawaiian island is slowly coming back to life after being bombed during naval training exercises.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Watch the newest land on the planet form before your eyes.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

A tunnel of hardened lava along Maui’s famous Road to Hana.