This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

The celebrated eyesore created by starry-eyed sweethearts.

The first green space constructed on an elevated viaduct.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Touching displays of wishes for peace from the Cold War era.

Time capsule of a museum, in which the Soviet Union remains alive and kicking.

Tibetan-influenced mountain fortress in Northern Pakistan.

Space-age minarets towering over Islamabad.

Morocco's Argania trees are infested with nut-hungry goats.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

The 10,000 Torii shrine.

Largest graveyard in all of Japan surrounds a famous mausoleum.

Hot springs monkey spa in the middle of Hell's Valley.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

The largest volcanic caldera in Japan holds an entire city in its maw.