The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

A 200-year-old building in the French Quarter that was to be Napoleon's home in the New World.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

An artist's cute bronze subway sculptures belie his violent artistic past.

Red frames showcase remnants of one of New York's original subway stations.

The most confusing clock in New York.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

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

Wine bottle sculpture with a ship's stateroom inside.

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

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Little Red Lighthouse under the George Washington Bridge.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Macabre astrological automaton clock dating to the late 1400s.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Home to items never before seen by the public.

A miniature city built by a single hunchbacked monk.

A bizarre roadside attraction and the first instance of miniature golf in the world.

More than five miles of underground passageways.

This replica of the Greek structure is in the heart of Nashville.

A crumbling hospital from the 1850s on Roosevelt Island.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.