Washington, D.C.
USNO Master Clock
The most accurate timepiece in the world.
Places shinwook0730 Wants to Go
130
Places I want to go
Places on this traveler's wishlist.
Washington, D.C.
Knife Edge
Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.
Washington, D.C.
Washington Monument Access Hatch
Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.
Washington, D.C.
Library of Congress Book Conveyor Tunnel
A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.
Permanently Closed
Washington, D.C.
Site of the Knickerbocker Disaster
You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.
Washington, D.C.
Washington Stock Exchange Building
D.C. once had its own tiny rival to the New York Stock Exchange.
Washington, D.C.
Starship Enterprise NCC-1701
The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.
Washington, D.C.
Amelia Earhart's Lockheed Vega
The "lovely red Vega" of the legendary record-settling pilot.
Washington, D.C.
FDR's Swimming Pool
There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.
Washington, D.C.
Mount Zion Cemetery's Underground Railroad Shelter
People escaping slavery may have hidden inside a corpse vault.
Washington, D.C.
Eritrean Cultural Civic Center
Daily lunch spot for many of Washington, D.C.'s cab drivers.
Washington, D.C.
Treasury Department Cash Vault
Where the U.S. government kept its actual treasure, before Fort Knox.
Permanently Closed
Washington, D.C.
Government Printing Office
Need a hardcopy of the 50-title Code of Federal Regulations? This is the place.
Washington, D.C.
Senate Bathtubs
Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.
Washington, D.C.
Washington Coliseum
A historic arena where the Beatles played their first concert in the U.S.
Washington, D.C.
Abandoned Drawbridge Control Room
The hidden offices underneath Memorial Bridge have been locked up since 1976.
Washington, D.C.
Peirce Mill Spy Station
Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.
Washington, D.C.
FDR's Bomb Shelter
The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.
Philadelphia, Pennsylvania
Wanamaker Building
The first American department store, and home to the largest operating musical instrument in the world.
Philadelphia, Pennsylvania
Masonic Temple of Philadelphia
Huge masonic hall in Philadelphia with lavishly themed rooms.
Philadelphia, Pennsylvania
America's Oldest Operating Theater
In the early 1800s, surgery was also a show.
Philadelphia, Pennsylvania
Mount Moriah Cemetery
An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.
Philadelphia, Pennsylvania
Shofuso Japanese House and Garden
Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.
Philadelphia, Pennsylvania
Site of the Jefferson Street Ballpark
The humble field where the first Major League Baseball game was played.
