The block of aged dairy is probably still edible after 2,300 years in a peat bog.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A rocky Irish outcropping with a history of wealth, conflict, and ruin.

The ruins of a medieval monastery named after a type of tree.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

This beautiful site is where the first transatlantic telegraph was sent from.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

This lurid German fountain plots the sad course of marriage from dating to death.

A Roman spa buried deep beneath the City of London.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

A bus with a butt and biceps to put Olympic athletes to shame.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

One of the world's heaviest musical instruments towers within a popular urban park.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

Tiny memorials honor individual victims of the Holocaust.

Reminders of the Battle of Berlin still scar the railway.

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