Hundreds of lucky felines haunt the ruins where Caesar was murdered.

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

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

A legendary speakeasy bookstore returns from the brink.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

A wunderkammer hidden on the top floor of the Hartford statehouse.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Cryptic messages embedded in the New York City sidewalk.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

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

The oldest surviving synagogue in New York City is now a soaring art space.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

This quirky curiosity shop takes its cues from the world's bazaars.

Unique antiquarian shop specializing in globes, maps, and prints.

New York's oldest magic store.

“Invented in Key West, Perfected in Brooklyn."

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.