Luxembourg, Luxembourg
Bock Casemates
An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.
Places I want to go
Places on this traveler's wishlist.
Luxembourg, Luxembourg
An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.
New York, New York
Revolutionary War casualties fill the only 17th century structure remaining in Manhattan.
Gablenz, Germany
This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.
Coleford, England
The mysterious, fantastical woodland inspiration for "The Lord of the Rings."
New York, New York
A crumbling hospital from the 1850s on Roosevelt Island.
Portugal
This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.
Al Madam, United Arab Emirates
An abandoned desert hamlet swallowed up by sand.