The castle that provided the setting for much of 'Monty Python and the Holy Grail' is now a pilgrimage site for fans.

This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

This collection of Neolithic monuments make up one of The U.K.'s richest archeological landscapes.

This pyramid is dedicated to all those who suffered martyrdom for civil and religious liberty in Scotland.

A striking glass tribute to two sisters who suffered during Scotland's "Killing Time."

A six-ton wedding present for the King of the Scots.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

The most loyal of little dogs, or a Victorian era publicity stunt?

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

A sweet symbol marks the place where torturous executions were once carried out.

Largest lake in Great Britain measured by surface area.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

The heads of two giant mythological water horses honor Scotland's horselord past.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.