Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

World's first "penitentiary," meant to be humane, drove men insane.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Mysterious rocks that ring musically when struck.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

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.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

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

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A crumbling hospital from the 1850s on Roosevelt Island.

Elevated freight railway turned wildly successful urban park.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

This remote island in Iowa was abandoned after being devastated by flood.

Thousands of majestic trumpeter swans fill this park, sounding distinctly like a certain brass instrument.

For decades, it has disappeared and reappeared as water levels rise and fall.

A whimsical menagerie of creatures carved into a 300-year-old tree trunk.

A lavender labyrinth so large it’s visible on Google Earth.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.