The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

Hotel designed by indie graphics artists.

An "evil painter" included pointed symbols in this artwork to poke fun at members of the Danish Parliament.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Fortified medieval tower house with lovely roof garden.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

Fountain where visitors can earn a license to be mad.

The largest known wine barrel of the medieval era is visible from the street in Gubbio.

Medieval streets buried beneath a papal fortress now form an underground city you can walk through.

What appears to be an ancient Roman temple is actually a Catholic church.

A 16th-century horror show built in a lovely Italian garden.

This medieval mountain town is also known as the "Village of Streams."

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

Geothermal waterfalls in Tuscany.

Romans built the world's tallest artificial waterfall in 271 BC.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

Water and windows define this defensive Italian well.

Memorial to the 89 children killed during the NATO bombing of Serbia.

Journey through a mesmerizing array of board games inside this museum.

In the fictional world of Kcymaerxthaere, standing at this site just outside Vienna, Austria, the sky would have been found beneath your feet.

The first modernist church in Europe.