The largest stone circle in the world has ended up bringing up more questions than it has answered.

Two beautiful Victorian-era parks replete with ornamental waterfalls and lakes.

The ruins of a Roman fort lie in the shadows of an imposing medieval castle.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

Two gilded cherubs perched on a church bell tower have been reminding visitors of the finitude of life since 1760.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

The oldest working mechanical clock in the world.

Soldiers carved these regimental badges into the chalk hills in remembrance of those who died in World War I.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

This enchanting rainforest hotel looks as though it grew from the forest itself.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

The world's largest underwater restaurant is submerged off the southern tip of Norway.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Mound of stones marking the burial site of the world's most famous orca.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

A double cantilever system bridge that was designed to prevent flood damage.

Britain's only herd of free-ranging reindeer.

Enter the world under the hill at this ancient UK burial chamber.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.