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

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

There is a strange little carving of a person seemingly crushed by a pillar behind the remains of St. Thomas Aquinas.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

The beautiful baroque library of the Hapsburg empire.

The Guardian of Tallinn.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

Quaint, disturbing, and macabre objects are all on display at this intriguing collection of medical instruments from bygone eras.

19th century tunnels burrowed under Liverpool.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

The tower was originally used as a chimney for the waste incinerator of St. John's Precinct and Market.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

This stone once marked the boundaries of Liverpool's medieval markets.

Most of Britain's gold reserve was secretly stashed here after the start of World War II.

This whimsical, unique clock has been entertaining shoppers for well over 20 years.

A hundred copies of Antony Gormley's naked body stare out across the water.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

A monument to the man who almost killed Hitler.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Eighty million natural history specimens call this gargantuan museum home.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.