Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

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

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

One man's labor of love, Amman's oldest home has become a time capsule with its doors permanently open to artists and guests.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The world's only museum devoted to the wonders of fluorescence.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

A unique seaside cave where Aleister Crowley faked his own death.

An early Portuguese serial killer's head is alarmingly well preserved in a jar at the University of Lisbon.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Week-long block party becomes a competition for the best decorated street.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A Milanese café entirely designed by the American director Wes Anderson.