A marvel of Byzantine engineering under the streets of Istanbul.

This statue in Plaza San Francisco commemorates a beloved figure from 1950s Havana.

Sweden's "good old days" painstakingly re-created in a model village.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

Finally reunited, the three effigies now stand in a museum courtyard.

This poured-concrete water reservoir is a gem of modernist architecture well-hidden in a city forest.

A winding, blood-red tunnel of hardened lava navigable by foot.

The flagship building of an early national restaurant chain is a superb example of terra cotta art.

Dedicated to preserving the history of free Black communities in Brooklyn and beyond.

The Underground Railroad passed right through this historic Brooklyn Heights church.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

Brooklyn's most iconic restaurant, resurrected.

This recipe is set in stone.

One of the few Glatt kosher delis in the United States is a cornerstone of its Hasidic neighborhood.

A B.Y.O.B. Mexican cantina lives inside one of the last tortilla factories in Brooklyn.

A way to take your secrets to someone else's grave.

Come for the pastrami, stay for the million-dollar art.

A beautiful collection of architectural ornaments rescued from demolished New York City buildings.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

Volunteer-run library dedicated to exploring five decades of activism history.

“Invented in Key West, Perfected in Brooklyn."

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.