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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

Legend says this sacred tree was a gift from goddess Athena.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

The once highest point in China blends symbolic design with a kick of adrenaline.

An out-of-place slice of France, smack in the middle of Shanghai.

A prestigious learning institute of old Shanghai.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Singapore's landscaping project is home to 18 incredible Supertrees.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

A modern temple with an ancient philosophy.

The Guardian of Tallinn.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

It houses the remains of a 17th-century version of the Titanic.

Home to three historic ships from the age of Vikings.

Copenhagen's celebrated theme park and gardens.

Five candy-colored villages on the Italian Riviera.

Two stone columns flank the grand Venice square, but there were supposed to be three.