The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A whimsical bridge adorned with decorative dragons.

This abandoned Slovenian military barracks has become a punky-political art squat.

Artist's eccentric property excessively decorated with found objects and work of his own.

Balconies that have a most unusual accent.

A French library that makes sure its love of books is writ large... giant in fact.

The largest underground lake in Europe.

A small but immensely extravagant palace built by the "Night King."

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

The Guardian of Tallinn.

The oldest continuously operating pharmacy in Europe.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.