A statue commemorating a Polish dog who took his role as man's best friend very seriously.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Elegant marble and old vaults fill this historic Dutch bank turned office space.

The first green space constructed on an elevated viaduct.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

One of the world's largest collections of pathological specimens.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

An unusual round church in London with a Templar past.

Eclectic collection of rare and beautiful stones in a historic home.

The empty tomb that houses the memories of Roy Bertelli's revenge.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

The poet’s boyhood home is now dedicated to celebrating his life and legacy.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.