Discarded animal sculptures stand forgotten by an abandoned aquarium and water park in Bosque de Chapultepec.

The museum houses "the most studied meteorite in history," among other geological oddities.

The official Presidential Residence of Los Pinos became an emblem of Mexico's opulence and presidential corruption.

Hidden for more than a century, the grave of the Conquistador remains forgotten behind these church walls.

Located in a veterinary school, this macabre exhibit displays the effects of animal diseases.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

CDMX's home for the world's culinary delights.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

Twelve natural mummies are displayed in the crypt of this former monastery school.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

From scholastic to sepulchral - now under reconstruction.

One of the last Jazz Age "Wonder Theaters" in New York City.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

In the back of a nondescript sports bar is a museum-worthy mural by legendary cartoonists.

This abandoned caretaker's apartment is one of 13 left in the New York Public Library system.

More than 250 sakes are available in an izakaya hidden in the basement of a Midtown office building.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

Head past the aisles of tropical fruit and imported candy at this bodega to discover a hidden, weekends-only taco stand.