A moody and picturesque riverside ruin overgrown with vegetation.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

A particularly disconcerting tribute to Irish martyrs.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

A symbol of friendship between the mountainous regions of Switzerland and Bhutan.

This deceiving white sand beach gets its brilliant hue from the chemical discharge of a nearby factory.

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

The secret medieval communication system will whisk your words above the noise of the crowd.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

These medieval skyscrapers dominate the skyline of this small Tuscan town.