An unusual manor of stunning beauty, born out of a crippling disease.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The world's longest and deepest train tunnel.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

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

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

Legendary site where an evil bishop was devoured by rodents.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

This riverside restaurant has been serving customers since 1146.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The last bastion of Roman presence north of the Alps looms over a German town.

King Ludwig I's collection of beautiful women.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Enter the cabin of a life-sized Hindenburg replica.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

The "Prussian Versailles" that is as glorious today as when it was built.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

The prototype for all Nazi concentration camps.

A small but immensely extravagant palace built by the "Night King."