This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A symbol of friendship between the mountainous regions of Switzerland and Bhutan.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Hidden within this iconic mountain are a set of World War II bunkers once used by German forces.

This curious, round temple is the oldest still-standing marble building in Rome.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.

This ancient market is often referred to as the oldest shopping mall in the world.

This subterranean shrine beneath a bike rental store celebrates the iconic Italian scooter.

A Nesting Doll of Churches.

One of the best collections of wax anatomical models in the world.

Fantastic stories on a miniature railroad.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

An Austrian house of bones filled with hundreds of intricately painted skulls.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Artfully arranged bones of 5,800 Austrians.

Where beer lovers can literally immerse themselves in beer.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

Macabre museum devoted to historical Viennese murders.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

Ruins of two abandoned stations destroyed by the power they sought to harness.

A little Lady Liberty stands in the Norway town where the copper for the real thing came from.