You can still ride this 100-year-old work of art in Brooklyn's largest public park.

The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

The walls are decorated with whimsical murals painted by the creator of the Madeline franchise.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

An unassuming secret door once led to a legendary watering hole.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The history of the traveling carnival is remembered by this sprawling collection of vintage wagons, games, and rides.

One man's personal kunstkammer, museum and shop.

This Funeral Hearse Museum represents the finest in cadaver transportation.

Week-long block party becomes a competition for the best decorated street.

This cemetery features modernist statues as strange as its name.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

The spectacular collection of one of the world's best woodcarvers.

Solving a 60-year mystery finally gave a name to the young woman known only by the color of her clothes.

For decades, this waterfall remained hidden because of an artificial dam.

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

Medical history museum featuring a lovely doctor's office from the 1800s.