Washington, D.C.
Lincoln Memorial Undercroft
A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.
Places I want to go
Places on this traveler's wishlist.
Washington, D.C.
A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.
St. Augustine, Florida
A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.
Friday Harbor, Washington
This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.
Puebla, Mexico
The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."
Washington, D.C.
Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.
Princeton, New Jersey
The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.
Washington, D.C.
A computer bug so primitive it was an actual insect.
Washington, D.C.
During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.
Jersey City, New Jersey
A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.
Tallahassee, Florida
An unusual college football tradition involves burying pieces of sod from competitors' turf, replete with tiny coffins and headstones.
New York, New York
The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.
Washington, D.C.
While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.
Baltimore, Maryland
A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.
Franklin, Pennsylvania
Priceless space junk on display in front of a local Dairy Queen.
New York, New York
More than 300,000 historical artifacts from the famous music venue, from Duke Ellington's handwritten score to The Beatles' booking slip.
Kissimmee, Florida
Would you like a sleeper hold with that?
Sisters, Oregon
This lake in the Cascades lives up to its name, disappearing down a hole every spring.
Miami, Florida
A perfect circle of 24 mysterious holes dates back to prehistoric times.
Budapest, Hungary
A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.
Beckley, West Virginia
A historic coal mine that doubles as a museum and tourist attraction.
Chelsea, Québec
The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.
Florence, Italy
This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.
Rome, Italy
Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.
Florence, Italy
The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.