Elevated freight railway turned wildly successful urban park.

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

Rummage through this sunken ship, but leave your scuba gear at home.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

A very classy 1920s-era bar right in Grand Central Station.

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

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

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

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

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

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

Rare moles meet activism at this Oaxacan eatery.

The famous author's cottage hideaway.

The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.

This former luxury resort in Kaua'i is now an abandoned relic.

Get up close and personal with these majestic fish.

An open-air "garden" of mural art that changes weekly.

A once grand hotel now sits eerily abandoned in the Catalan countryside outside Barcelona.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.