Haunting monument to the German Jewish philosopher who died while fleeing fascism.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This semi-secret storybook hedge maze is also the oldest garden in the city.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Part bookstore, part café, and part forest.

Reclaimed material from a convent destroyed by cannonfire was used to build parts of this 19th-century cemetery.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

This scenic waterfront swimming pool is the longest salt water pool in North America.

This cemetery features modernist statues as strange as its name.

The monster at the center of the Darwin Center Spirit Collection.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.