An old California photo stand has been turned into a shrine to the cozy art of crochet.

The king of U.S. high points towers over every other peak on the continent.

A giant donut stands as a popular symbol of Los Angeles iconography.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

This nine-story building can be played like an instrument.

America's post-nuclear-attack chambers of Congress.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Home to Hollywood history and a very special salt crystal.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

This North Carolina store preserves a historic moment in America's movement for racial equality.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

There aren't too many operational funiculars around, but Pittsburgh has two!

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

Home to the deepest rift anywhere on Earth.

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

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.