These sacred Mesoamerican ruins feature peculiar petroglyphs hidden in the stones.

Paris' linguistic guide to the international language of, yes, love.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

The celebrated eyesore created by starry-eyed sweethearts.

The video game-themed street art first popped up in the French city.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This demon atop the Notre-Dame de Paris looks utterly bored.

A stunning medieval castle houses this eclectic, interactive tribute to all things wine.

A 12th-century Italian skirmish gets reenacted with 500,000 pounds of flying citrus.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A sculpture serving as an homage to Pope John Paul II.

This black church sits alone among a field of lava rock.

Medicinal spa created with the discharge from a geothermal energy plant.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

This wrecked airplane has been sitting on a black sand beach since the 1970s.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The largest whale museum in Europe allows visitors to walk among life-size giants.

An encyclopedic collection of mammal penises.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

The most powerful waterfall in all of Europe.