This former Masonic lodge has been transformed into part museum, part bar, all awesome.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Lavish royal estate punctuated with heated greenhouses.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

Rent a barrel for a personal view of where the Baltic Sea meets the Gulf of Riga.

A small museum contains one of the largest collections of ethnic and traditional headgear in the world.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

Mysterious heaps of stones dot these otherworldly woods.

These abandoned vessels are destined to be reclaimed by the forest.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

3,000 market stands in five former Zeppelin hangars.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

This small museum located under the famous cube houses, is home to some 30,000 chess pieces.

Four giant movable street lights decorate this modern Rotterdam square.

A huge teapot illuminates a home for the elderly.

An early 19th-century English style garden hidden in the Rotterdam cityscape.

The world's largest church atop a political fault line.

A salty cave excavated by elephants and the location of a deadly disease vector.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

Strange sandstone canyon known as the "place broken by itself."

Drink and dine in a coral cave that's at least 120,000 years old.