Friction between grains of sand cause a curious "singing" sound.

A home decorated by its owner with eye-catching and captivating assemblages of found objects

Statue commemorating the use of ether in anesthesia.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

Rumors of the occult haunt this upscale 1920s hotel.

A tiny town in an empty lot was the work of a local eight-year-old.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A lush green oasis in the middle of Chicago.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A speakeasy takes on Chicago's drinking culture.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

An enormous park-like oasis, full of famous Chicagoans' graves.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

The only remaining historic maritime signal station in the United States.

This propitious plastic porcine has been petitioning park visitors to pick up after themselves for more than 50 years.

This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.