A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A musical instrument played by the sea.

According to a local legend, this bridge was constructed by an astrologer with the help of the devil.

These pillars at the main entrance of this church are actually a hidden musical instrument.

The final resting place of the poets Shelley and Keats.

Gods clash with machines in a power plant regenerated as a museum.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Home of Philip Johnson, one of the 20th century's most influential architects.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

The oldest continuously inhabited street in America.

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

For 20 years, local pumpkins have met their fate on the iron fence surrounding this Cobble Hill home.

These mosaic designs promise a cure for headaches, toothaches, and colds.

Iconic red and white plaques show the creative names invented to navigate the city streets.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

On the hills of Bay Ridge stands a house straight out of a fairy tale.

Constructed in the 1920s, this former pencil factory is now an office building.

“Wagon Jobber" turned smokehouse magnate's family-owned business is still going strong 100 years later.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

Detailed facade of a brownstone in Boerum Hill.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.