Elvis's own personal tropical hideaway.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

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

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

These enigmatic ruins continue to vex archaeologists.

Sloth rehabilitation center in the jungle of Costa Rica.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

A safe place for the wild donkeys of a hot vacation destination.

The subtle interplay of fire and water is hard to ignore at this remote Jamaican spring.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

There is one corporation registered for every three square feet of space in this inconspicuous office building.

Send a postcard while vacationing with Satan.

The deadly but beautiful ornamental oleander was planted all over the island of Galveston after the hurricane of 1900.

This seaworthy collection was sparked by one man's passion for sailing.

A 131-year-old wunderkammer of Texas history.