A dilapidated dock tells the story of Titanic's missed arrival.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Elevated freight railway turned wildly successful urban park.

A crumbling hospital from the 1850s on Roosevelt Island.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

One of only two remaining Victorian-era greenhouses in New York.

The Underground Railroad passed right through this historic Brooklyn Heights church.

Final resting place for the Triangle Shirtwaist fire’s unidentified victims.

This block in downtown Brooklyn was a hotbed of antislavery activism along the Underground Railroad.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

This museum chronicles the history of a leprosy quarantine hospital that then became a refuge.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

Abandoned power station once home to a squatter community, now being developed into an arts center.

A modern zoetrope on the New York City subway.

Detailed facade of a brownstone in Boerum Hill.

Sniff the Titan Arum's rotting flesh.

Volunteer-run library dedicated to exploring five decades of activism history.

An enormous, inside-out glass globe built in 1935.

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

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

From dragonfruit to mangoes to durian this Thailand resort allows guests to stay inside all manner of giant fruit.