This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

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

The "Seinfeld" diner.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

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 São Paulo's tight urban intersections has become a haven for graffiti artists ever since a single Batman started the trend.

An independent bookstore and press with a large collection of local and English-language literature.

A public statue crafted by Singapore's pioneering sculptor, Ng Eng Teng.

These jagged limestone blades cut out through the canopy of the jungles of Borneo.

Psychedelic murals coat the inside of a nondescript research library.

Beneath the most controversial monument in Mexico City is a cultural center that exhibits only digital art.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Diego Rivera's massive tiled fountain and failed infrastructure project.

This door in the old residential area of Guadalajara hides several communist motifs.

One of Mexico’s historic pottery-producing towns is home to a museum showcasing the craft.

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.