A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

An exquisite Baroque church in Vienna's old town.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

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

Baroque celebration of the end of the Great Plague of Vienna.

The Habsburgs' royal collections of art and wonders.

Legends surround an ancient tree trunk riddled with nails for good luck.

The topiary maze at the Habsburg hunting lodge.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Op-art architecture designed for happiness.

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

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The "shampooer of kings" who opened London's first curry cafe was a celebrity in the 19th century, but is all but forgotten now.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

A blooming house of worship for the masses.

Buddha shrines hide within dark tunnels at this unique forest temple.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.