When it opened during the final years of the embargo, all the drinks and cigars were free.

A Spiritualist house of worship where believers communicate with the dead in the spirit world.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

A derelict bit of transportation infrastructure hidden in the woods.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

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

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A historic neighborhood church is reborn as a psychedelic arts collective.

This grand gothic brewery has been pumping out suds for over a hundred years.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

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

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

This diminutive yet beautiful local stepwell once yielded enough water to irrigate the lush fields of the village.

Camera cars and condom bikes built from scrap and one man's passion.

Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.