One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

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

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Get up close and personal with these majestic fish.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

The largest source of fossilized insects anywhere.

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

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

A sprawling collection of over 106,000 toys from around the world.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These aggressively sustainable art homes look like something out of 1970's science fiction.

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

This high desert botanical garden is a unique display of New Mexico’s ecology and culture.

A museum dedicated to the alleged Roswell Incident.

A historic freight system that found the true gold rush is in tourism.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

This abandoned mine offers a glimpse at what life was like for those who came to Alaska seeking Gold Rush riches.

This gravelly, dangerous highway is the only road in the United States that leads to the Arctic Ocean.

A giant poultry statue immortalizes one of Alaska's more humorous town names.