Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Monsters and miniatures are held in equal esteem at this wondrous museum.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

This hidden garden boasts amazing views of Lyon.

A medieval church with largest and oldest collection of Renaissance frescoes in France.

Historic medieval fortified city in southwest France.

Ancient paintings known as the "Sistine Chapel of Cave Art."

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

This unassuming layer of clay boasts an out-of-this-world origin story.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

This small piece of railroad history sits behind the parking lot of a chain grocery store.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

Contains a wealth of information about the first exploration and later use of the Green and Colorado Rivers.

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

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

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.

An ode to one of the dirtiest jobs during the construction of the Boulder Dam.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

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.

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.

Home to a forest of whimsical pygmy Coast live oak.

The Giant Lemon of Lemon Grove.