100-year-old shipwreck you can walk up to at low tide.

Treehouse motel and treehouse-building school.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

Hollowed out cedar log tubs set in an ancient towering forest.

A heavenly experience, right here on Terra Firma.

An emporium for the weird, creepy, rare, and just plain gross.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

Blitzkrieg bop your way through Berlin's Ramones Museum.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

Where once there was a train station bathroom, there is now this German burger joint.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

The most visited, and possibly most controversial, museum in Germany.

A slice of central Asia in the middle of Berlin.

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

An eerie, derelict amusement park in Berlin.

Nose around a unique collection of more than 300 natural aromas used to craft perfume fragrances.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.