Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Elevated freight railway turned wildly successful urban park.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A spiralling hourglass-shaped tower rises from the forests in Denmark.

Hindu temple of the dead home to hundreds of long-tailed macaques.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

The Bristol Camera Obscura housed in an ancient windmill.

Grotto replete with mystical designs laid out in glued shell mosaics.