This small 16th-century church in Athens is almost entirely surrounded by a modern building.

This fortified town dating back to the 1400s is often described as an open-air museum and is a protected National Monument of Bosnia and Herzegovina.

With no menu and no sign, this 130-year-old taverna doles out affordable home cooking.

Dating from the 18th century to today, this museum houses a collection of over 1,200 musical instruments.

Elaborate stone houses constructed from the ruins of war.

Tear apart fatty, gently charred lamb chops with your bare hands.

The two abandoned overpasses are among the largest bridges in Poland.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

On this Polish road, an optical illusion makes cars seem to roll uphill.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

Where once there was a train station bathroom, there is now this German burger joint.

This sublime architectural marvel is a rare example of an expressionist church.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

The world's first and only escalator for lazy bicycles and their daunted riders.

This roadside attraction looks like a flying saucer parked atop the tundra.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

World's strongest whirlpool.

A Viking-style brewpub named for a Norse sea giant, in the heart of fjord country.

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

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

Nordic giants resurrected from the sea and restored to their former greatness.