A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

One of only two commuter aerial tramways in the United States.

On the Hudson resides one of the largest clocks in the world.

Even Henry David Thoreau found this glacial pothole irresistible.

Instead of becoming a power plant, this abandoned complex became a massive letdown.

This historic Boston building has gone from personal estate to porn theater and back again.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.

Introducing the Green Fairy to her fawning masses.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The second oldest continuously operating bar in Louisiana.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

"X" marks the spot of an echo chamber in the middle of a plaza.

A statue honoring 44 continuous years of greeting passing ships.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

This former prison is an Art Deco masterpiece with a past full of civil rights flashpoints.

Decommissioned NYC subway cars are dumped into the ocean to create this underwater wildlife habitat.