Grant Wood painted some of his most famous works of art at this studio.

Carrying on the legacy of a short-lived experimental school tucked away in the mountains of North Carolina.

A museum dedicated to the legacy of Bob Moog and his pioneering synthesizers.

This aromatherapy shop and mini-museum cofounded by the Sigur Rós frontman documents Icelandic history through scents.

This tiny museum's sizable collection is jammed into a former underground public toilet.

An encyclopedic collection of mammal penises.

Home of an evil witch famous within southern folklore.

A vast collection of rare, historical, and vintage supercomputers.

This twisty sign depicts the chain's first logo.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

An industrial relic is now one of Europe's most staggering art spaces.

One of downtown Berlin's last reminders of its Communist past.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Indents in the pavement are all that remain from a grisly death machine in Paris.

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

The curious underground history of keeping Paris clean.

A modern-day Lascaux cave underneath Paris.

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

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

A bronze sculpture of Lenin’s likeness outside Havana surrounded by 12 human figures in solidarity with the Bolshevik Revolution.