Internet rumors, often involving Icelandic singer Bjork, have abounded regarding this isolated outcrop of rock.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

Built in the 16th century, the tower is now in ruins.

A once extravagant mansion, now reduced to ruin.

This abandoned mausoleum from 1815 sits deep within the forest surrounding Callendar House.

The mystery of this small, brick pond eluded its possibly only investigator until his death.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

The Burnside Fountain and its questionable interpretation.

This chestnut box will not be opened until the country music legend's 100th birthday in 2046.

Every Saturday morning, this microbakery fills up with freshly baked pastries and sourdough breads.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

Six miles off the coast of Key West, a former military transport ship is now one of the largest artificial reefs in the world.

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

One of the oldest bridges in Norwich was used during the English witch trials and is said to be haunted.

Does being buried standing up help you get into heaven faster?

This island castle contains enough secret passageways to support a season of Scooby-Doo episodes.

A castle built for love, and abandoned due to heartbreak.

This tiny little island has, as the name says, just enough room for its single house.

Surreal riveted sea forts once protected the Kent shores from German attack.