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

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

The best Tiki bar in Las Vegas.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The oldest operating pharmacy in the world features 800-year-old recipes.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

First a horse rendering plant, then a 19th century landfill, this beach is full of glass from thousands upon thousands of broken bottles.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

2300-year-old Roman road connecting the empire.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The remains of a ruined mansion memorialize the 1906 earthquake.

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A painfully obvious spy house sits right across the street from the Russian Embassy.

The final resting place of a space program monolith.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A collection of full-size movie monsters opened to the public.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Treehouse motel and treehouse-building school.