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

A wunderkammer of mysterious objects and stories.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

This classic restaurant features a gorgeous mirror-clad room.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An eerie, derelict amusement park in Berlin.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

An American ghost town hides along a side street in Scotland's capital.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

This king penguin is a knighted brigadier of the Norwegian Army.

This early version of the guillotine was used to execute the man responsible for its construction.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Every birth, death, and marriage is recorded in these color-coded leather-bound books.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

A library where thousands of books explain how to avoid another Great Recession.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Protecting the dead from opportunistic body snatchers.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

A sweet symbol marks the place where torturous executions were once carried out.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This series of Scottish caves has no clear purpose other than baffling historians.