Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Finnish lake, and scene of an infamous murder mystery.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

No matter how many times this community-run sauna gets destroyed, it always rises from the ashes.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This Manchester laundromat is hiding something.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

Villas that once served as playgrounds for the rich now fall away in decay.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

This abandoned five-star hotel is now a five-star urban exploration destination.

The now-overgrown beach resort was once frequented by Yugoslav military elite.