When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

Bootleggers ran booze beneath this building before (and after) Route 66 appeared beside it.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Colorado's only true geyser is hidden within the San Juan National Forest.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

A former department store turned into a quirky restaurant.

This small, unassuming street is now a canvas for color and creativity.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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

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.

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

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.