A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

This building has a giant piercing through one of its corners.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

Trek up this glacier before it disappears.

The first mosque in the world to receive electricity.

A fearsome dragon clings to a corner of Munich's city hall.

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

A 12th-century Italian skirmish gets reenacted with 500,000 pounds of flying citrus.

A cherry tree growing atop a mulberry tree.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

Geometry and mystery come together in an epic show of octagonal masonry.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Southern Italy's spinning top village.