A spherical "micro-nation" in the heart of Vienna.

Op-art architecture designed for happiness.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The final resting place for the remains of 143 Habsburg royalty.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Apartment complexes built into huge repurposed natural gas tanks.

This cubist Vienna church building looks like some sort of alien stonehenge.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

This simple apartment may have inspired some of the most important theories in the history of science.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

A massive metal lobster welcomes tourists to a roadside restaurant.

When you get to Magnetic Hill park near the sign, put your vehicle in neutral gear, and watch it roll uphill...

Hundreds of tiny dead butterfly eyes gaze down at diners in this Australian eatery.

Swedish skyscraper with a 90° twist.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Copenhagen's celebrated theme park and gardens.

Danish observation tower designed to look like a giant beer bottle.

The world's biggest floating museum in Gothenburg, Sweden.

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

Four alabaster giants contemplate the tides on the shore of Denmark.