A Medieval Water Tower in the Heart of Massachusetts.

An enormous, inside-out glass globe built in 1935.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The only depiction of Abraham Lincoln holding a weapon, and the names of all 9,000 Cuyahoga veterans of the Civil War.

A mysterious spot where the laws of gravity seem not to apply.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

Over 50 whirling pools left behind from the glacial age.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The corpse bride of Portugal.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.