A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

An eerie, derelict amusement park in Berlin.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Berlin's old airport.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

If you've ever wanted to learn about the history of Asian fish balls, this Taiwanese museum has you covered.

A secret passageway from World War II is now a quirky pedestrian shortcut.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.