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

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

A 30-acre garden inspired by the principles of modern physics.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Largest Kauri tree in New Zealand.

The premier place to experience the Victorian imagining of the steam-powered future.

Known for the tunnel that leads visitors to the water.

One man's dream has turned into this naturally growing chapel made of almost nothing but trees.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

Tubing through a cave lit with glowworms is a magical underground experience.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

This Italian ski resort rose to fame when Benito Mussolini was held prisoner there and then rescued by the SS.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

These pools have been abandoned for over 20 years.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

An unusual house built using an iso-elastic membrane.

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

A 12th-century Italian skirmish gets reenacted with 500,000 pounds of flying citrus.

One of the highest emergency huts in the world has been waiting almost a century to give imperiled climbers a place to lie down.

This former fascist summer camp was abandoned for decades.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.