Hamburgers are intensely proud of their tunnel beneath the river.

A strange rock formation with numerous legends trying to explain it.

Wax models of disease and deformity are on display at this German medical museum.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

The history of German architecture is explored across this fairy-scale mini-city.

Thousands of flowers create enchanting pink tunnels over the city streets.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

A former ironworks that was the first UNESCO industrial site.

An abandoned swimming pool decays on the outskirts of Berlin.

This museum tells the story of lake dwellers from 4000 BC to 850 BC, replete with stilt houses and goats.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

In this truly magical place, rent hasn't been raised since the year 1520.

This 600-year-old home seems to defy physics.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

This unique Renaissance castle was turned into a home for Nazi occultism.

An elevator into the Baltic Sea.

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

No need to strap in for a "ride" on this walkable roller coaster.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Living trees form the structure of an open-air palace.

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