This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

The anatomical-pathological collection of a man who changed surgery.

A cluttered and astounding collection of antiquities and curiosities.

A nuclear power plant abandoned along with an international allegience.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

Neo-cave art on the macro scale.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

These azure waters were thought to lead to the Mayan Underworld.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

An indigenous take on European design creates a stunning visual overload.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A massive yet whimsical statue pays homage to the art and joy of "flight."

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

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

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

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

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

Part bookstore, part café, and part forest.