The bears of Bern have been a city highlight for over 500 years.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

A church of bones, decorated with 40,000 human skeletons.

Macabre astrological automaton clock dating to the late 1400s.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

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

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This rare basilica nestled right in downtown Asheville is an architectural marvel, inside and out.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Spanning over 10,000 square miles, this ancient salt pan is one of the largest on the planet.

The remains of diamond fever taken over by the desert.

The home of the Dead Sea Scrolls is an abstract modernist dream.

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

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

It houses the remains of a 17th-century version of the Titanic.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The most visited, and possibly most controversial, museum in Germany.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Hear the quietest sound from across the dome.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Copenhagen's celebrated theme park and gardens.

The South African dialect's complex history is immortalized in stone, in one of the world's only monuments dedicated to a language.

The original goat tower, the one that started it all.