This once rural mansion now sits in the heart of the city.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

Rent a barrel for a personal view of where the Baltic Sea meets the Gulf of Riga.

Come for the giant taxidermy lion, stay for the knick knacks at this Minneapolis curiosity shop.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

A historic landmark and museum filled with curious objects representing the history of Key West.

An unusual snaking bank of boulders caused by longshore drift.

This human-made pond is part of a Korean palace complex first built in the 7th century.

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

This abstract sculpture was initially so disliked that it got moved to the outskirts of town a few months after installation.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

This Viking-inspired miniature golf course features a pirate ship and views of Icelandic landscapes.

A charming, homemade vending machine dispenses burgers and sandwiches at this hole-in-the-wall bakery.

The heartbeat of modern Uzbekistan’s thriving market culture.

The former home of a conniving 17th century politician is now a high-end hotel.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

The burial ground of two kings and a queen is now a calm city park in the middle of bustling Seoul.

One of the notorious Soviet leader Joseph Stalin's many summer retreats.

Walrus skulls and narwhal bones were found here while excavating a 900-year old church.

This river island in Sierra Leone is home to impressive biodiversity and the country's first community conservation program.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.