A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

A six-ton wedding present for the King of the Scots.

The widest natural waterfall in Estonia is a sight to see in all seasons.

Historic medieval fortified city in southwest France.

Its town washed away centuries ago, this lonely tower by the sea tells the tale of a mermaid and a curse.

An alien church provides much needed silence in the midst of a Finland shopping center.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

The tallest mountain in mainland Netherlands isn't actually very tall.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

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

The world's tallest bridge is also possibly the most elegant.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Countless grotesque faces stare out from this eerie Prague art wall.

Elaborate tile work in this railway station tells the story of Portugal.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This unreal Portuguese palace looks as though it's made from a pile of different castles.