A speakeasy takes on Chicago's drinking culture.

A monument to the art of slicing people open.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This shop for all your super spy needs hides an educational secret.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A towering Art Deco movie palace made to look like a Mayan temple.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A large circus museum with summer performances.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Iconic rock formations that allow for exploration during high or low tide.

Cliffs that hold fossils, including the earliest known reptile, dating back more than 300 million years.

Memorial to the father of the Republic of China.

Giant topiary dog once played a role in a terrorist bomb plot.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The celebrated eyesore created by starry-eyed sweethearts.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

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

Notorious artist squat renovated into legal studios.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The vast, legendary catacombs hold secrets much stranger than stacked bones.