This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

Romania's triumphal arch looks out over Bucharest.

A 16th-century monastery boasts a lush array of plants native to Mexico’s most biodiverse region.

One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

A honeycomb-like structure of interlocking shelves creates a beehive of books.

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

Past the hills and beyond the graveyard, this church feels extremely out of place.

This highly decorated dam is one of Guanajuato's most unexpectedly beautiful public works.

One of the city's most imposing Neoclassical buildings is also one of its most prestigious schools.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

Mexico's astounding mummy museum with "the world's smallest mummy."

This structure was moved nearly 40 feet while people continued working inside it.

For decades, the parade of apostles that left the Expiatory Temple of Guadalajara remained hidden inside one of the towers.

A beautiful and controversial modern sculpture that alludes to the Aztec past identity of the Virgin of Guadalupe and the phenomenon of syncretism.

This concrete amphitheater offers an unforgettable view of one of Mexico's most beautiful canyons.

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

The famous artist couple lived and worked here, in two different houses connected by a bridge.

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

This striking sculpture of Icarus honors Greece's fallen flyers.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

This feat of Brutalist architecture is also known as the Three Sisters.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Nicknamed the "Spirit of Paul Klee," this colorful apartment building features an array of multicolored panels.