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

The library of every book lover's dreams.

A delightful museum devoted to the history of books.

A fascinating aviation museum where you can chat with the veterans who once flew the aircraft on display.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

A tiny chapel clings to a precipice above Germany’s gemstone capital.

A surprisingly detailed model of one of the most powerful telescopes in the world.

If astronomy had a ghost, it would look like this observatory.

Ornate limestone building now filled with geologic specimens, and more.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

The red letters in the literary pavement leading to the library form a mysterious code.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This Funeral Hearse Museum represents the finest in cadaver transportation.

The little-known final resting place of one of America's greatest writers.

The nuns here cultivate silk to weave some of the finest scarves in the world.

The enormous earthwork sculpture honors the ponies that lived and worked in the old colliery.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

One of the shortest streets in York has an especially odd name.

This network of narrow, medieval passages has the most delightful name.

The largest fountain in Bratislava.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A breathtaking flower tunnel bursts with beautiful golden blossoms.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.