Scattered around Atlanta are little doors with big charm.

Tour the sci-fi-esque reality of governmental disease management.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Spike Lee's provocative film is officially honored right where it was made, the first time a work of art was used as a secondary street name.

This family-owned bakery is one of the last places in Brooklyn to sell the Nation of Islam–inspired bean pie.

Walk into the 19th century without leaving Brooklyn.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

This innocent-looking townhome is actually a subway exit.

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

Detailed facade of a brownstone in Boerum Hill.

“Invented in Key West, Perfected in Brooklyn."

Abandoned power station once home to a squatter community, now being developed into an arts center.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

Sniff the Titan Arum's rotting flesh.

Ride the subways of yesteryear.

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

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

A bookstore dedicated to the intersection of comedy and art.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts