One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

The highest rapid transit station in the world.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

The highest point on the island known for buildings that touch the sky.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A former connection to City Island, it has been abandoned since the 1930s.

Scattered around Atlanta are little doors with big charm.

An underground magnet for ever-changing street art.

Three-story slide through the New Museum.

Here, exhibits come with a side of edible history.

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

This poignant display is now a memorial to these regionally extinct species.

A large boulder marks the place where the island of Manhattan was purportedly "sold" to the Dutch.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Red Hook's massive public pool, built by Robert Moses.

This old estate is a remnant of when the Bronx was a popular summer destination for wealthy New Yorkers.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

New York's southernmost subway station is whimsically wavy.

A modern addition to the Greenpoint skyline.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

Headquarters of the world's fourth largest Hasidic sect and the first of many "770s" around the world.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.