No building in the world leans as far as the so-called “Leaning Tower of Abu Dhabi.”

The cluster of igloo-like domes forms the remains of an ancient burial ground.

Microscopic scenes; some call it novelty, some call it art.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Macabre astrological automaton clock dating to the late 1400s.

Where commuters walk through remnants of an ancient Greek necropolis.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

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

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

Large miniature theme park with 100-plus models.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

An ancient capital city that dates back 3,000 years and harbors many surprises.

An ornate tomb pays tribute to one of the most influential and cherished military leaders in Vietnam's history.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Have fun at the world's first Buddhist waterslide park.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Climb to the top of the world's largest seated bronze Buddha.

30 years worth of pressed-tin, bakalite, and characters both loved and forgotten.