The lost library of Alexandria, revived as a spearhead of cultural preservation.

Soak up some local history in this restored Edwardian era swimming pool.

A 1930s Art Deco swimming pool with a design inspired by grand ocean liners.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

A huge musical instrument played by the ocean.

The rusting hulk of a hand-powered, nearly 160-year-old submarine abandoned in 1869 due to the ravages of decompression sickness.

A lavender labyrinth so large it’s visible on Google Earth.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

Outside of one of Britain's most renowned social clubs, a step installed specifically for the Duke.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

A former Canadian Pacific Railway station turned liquor store, the first and only station in Canada visited by British royalty.

This railroad track was so secretive that it was omitted from all maps.

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

The unusual patterns in this rock formation result from two distinct modes of weathering.

This life-sized sculpture has gained a reputation for bringing luck to anybody who touches it.

A nearly century-old amusement park is quietly decaying in a riverside forest in South Carolina.

At this unique temple in Darjeeling, Hindu and Buddhist practices co-exist harmoniously.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.