Possibly the oldest living thing in Europe, more likely a pagan survivor.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

One of Scotland's most important modern structures, it just made the '100 Most Endangered Sites' list.

Largest lake in Great Britain measured by surface area.

Where the sleeping monsters of Scotland's oil industry are left to rust.

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

Lavish royal estate punctuated with heated greenhouses.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

This abandoned five-star hotel is now a five-star urban exploration destination.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

This fairytale-like structure is the last turf church ever constructed in Iceland.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

A small museum in the Bay of Pigs gives the Cuban perspective on the famously failed U.S. invasion.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.