A hidden "place of interment for gentlemen."

Walk over a 150 year old manhole.

Slyly buy a shake in the Parker Meridien lobby.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

New York City's smallest piece of private property.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

Read a book next to a Midtown waterfall.

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

A miniature rainforest is growing inside of a Midtown Manhattan office building.

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

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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A beer pipeline runs beneath Bruges.

A colorful kitschy temple and floating market off the beaten path.

Believe it or not, the now-ubiquitous California avocado originated in Guatemala.

This restored colonial house was once home to the botanist responsible for bringing avocados to the U.S.

This Seattle joint serves food inside an old train car once used by FDR.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

The abandoned Bermudian home of a British naval leader is surrounded by crumbling sporting fields and the graves of convicts.