The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This mysterious, medieval cathedral remains unbuilt but fiercely protected.

The longest and steepest staircase locks in the United Kingdom.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

The Virginia home of one of the signers of the Declaration of Independence is being preserved with a unique glass facade.

This abandoned sea fort has become an accidental bird sanctuary.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.