This museum houses two of Mexico's most impressive Aztec monoliths.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

Frida Kahlo's childhood home, now a museum of her life and works.

The only castle in North America to ever house European sovereigns.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

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

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

Underneath the well-known Lindenhof hides a secret cellar documenting Zurich's early history.

An exotic wildlife habitat right off The Strip.

Dining in this grain cellar feels like stepping onto a fantasy film set.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.