Started as a kitchen garden, now the second largest botanical garden in the world.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

An intricate and amazing house built by architect Karl Junker.

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

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

The site of one of history's most indelible and horrific tragedies.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

A fantastic castle rumored to be the birthplace of King Arthur.

Cliffs full of fossils at the portal to England's Jurassic Coast.

A historic grist mill and active sluice on the Black River.

One of the world's largest model railroads is a mind-boggling achievement.

Steepest flood safety railway in the entire world.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

A modernist landscape of water and sci-fi concrete.

Where animatronic singing fish go to retire.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

America's post-nuclear-attack chambers of Congress.

Rummage through this sunken ship, but leave your scuba gear at home.

A psychological self-portrait in the form of a giant, segmented head.