A luxuriant botanical garden below sea level.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

A mysterious air force base built to resemble a Long Island fishing village.

A haunted hill that supposedly defied gravity.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The first commercial nuclear power plant constructed on Long Island.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

A large camera obscura, constructed entirely from digitally fabricated components.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

Avoid gangster interaction while window-shopping.

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

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

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

A bit of retro transportation flair preserved in the world's largest department store.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

A prison-like structure guards the remains of a notorious Old West outlaw.

The house's confection-like decorations are the result of one man's painstaking work over decades.

An unrealized dream to wirelessly electrify the entire Earth.

A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

An oddities shop that dabbles in the deathly and beautiful.