Dead weights honor the dead of Portugal's fishing industry.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.

Meet the bronze beloved pet to a family of famous peeing statues.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

Ancient mysterious ruts carved in the bedrock.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Monasteries on rock pillars, once accessible only by frayed ropes.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

Lavish royal estate punctuated with heated greenhouses.

The world's longest and deepest train tunnel.

For hundreds of years, this huge figure has been blessing visitors before they explore his body.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

Bell tower juts out from a village buried under a lake.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

The "dragon babies" of southeastern Europe.

This massive subterranean fissure is known as the "underground Grand Canyon."

Where Venice's gondolas go for a tune-up.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

A new sculpture calls attention to climate change in the centuries-old city it threatens.