Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

This small-town pizzeria won the Hollywood lottery.

A pristine beach on the Gulf of Mexico with deep ties to Pensacola’s Black community.

One of the oldest, tallest, and most haunted lighthouses in America.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

This railroad and oil tycoon's lavish estate now stands as a time capsule of the Gilded Age.

A building so large that it has its own weather.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Images chiseled into the basalt here date back an estimated 300 years.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Race through the maze, get your name on the sign.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

An ode to one of the first concerts broadcast via satellite.

A unique set of caves that spits waves back out into the ocean.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

Hot Doug's "Hot Dog" Stand.