Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

A submerged village appears when dam levels drop.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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

The largest portal tomb in Europe has a capstone weighing around 150 tons.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

One of Ireland's most infamous prisons for rebels including men, women and children.

A historic observatory precariously perched at the "Top of Europe."

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Berlin's old airport.

A 12th-century fortress containing some of Berlin's oldest buildings.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

In one of the world's smallest countries, a royal's personal winery is open to the public.