An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

A park with one large cat sculpture and 15 smaller ones, all painted by different Colombian artists.

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

One of the world's largest ancient burial mounds.

Museum preserving torture methods from the past.

Museum covers every step of the chocolate-making process, from cultivation to the finished product.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

This bridge was constructed from the rubble of the infamous Bastille.

A little sculpture with a large wardrobe.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

100 year tradition of fist fights, marked by marble footsteps.

Climb inside an iron crystal magnified 165 billion times its normal size.

Theme park featuring miniature replicas of European monuments.

A faithful reproduction of Al-Jazari's enormous water clock.

A beautiful but toxic fountain of mercury.

An ancient iron pillar in Delhi that seems to be rustproof.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

The mummified relic of St. Antoninus.

Where commuters walk through remnants of an ancient Greek necropolis.

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

The world's second-largest sundial, made entirely out of stone.