The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

An abstract monument to a symphonic composer.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A subterranean house of worship carved right out of the bedrock.

The celebrated eyesore created by starry-eyed sweethearts.

The experimental test tracks of a retro-futuristic monorail still stand in the French countryside.

This garden houses the remains of the ancient Greek port of Marseille.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This 18th-century sundial was designed to calculate the date of Easter each year.

This church sits upon a peaceful hill and a long, turbulent history.

Beneath the city of Lourdes, France is a massive, concrete church.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Fighting the British and making game shows for over 150 years.

A sanctuary for wolves in a community which once trembled in fear of the murderous "Beast of Gévaudan."

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

This submersible road connecting a French island to the mainland is lined with safety towers for when the tide strands travelers.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

What looks like a normal building is really a hollow facade hiding a subway vent.

The world's tallest bridge is also possibly the most elegant.

This bridge was constructed from the rubble of the infamous Bastille.