The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This historic mansion was built as a symbol of love between a husband and wife.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

This tiny Hawaiian island is slowly coming back to life after being bombed during naval training exercises.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

Mysterious glowing orbs float through the desert night.

A popular swimming hole that hides one of America's most deadly diving spots.

An emerald-green grotto just a short trip from Austin.

Now abandoned, this East Austin school for the disabled began as the "State Colony for the Feeble-minded."

Some islands... they come, they go, especially on Lake Travis.