At high tide this strange footbridge appears to have no purpose whatsoever.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

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

Accessible only at low tide, the deserted island is dotted with World War II ruins.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

This series of Scottish caves has no clear purpose other than baffling historians.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

These fantastically named natural pools look like something out of a Scottish myth.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A stunning medieval castle owned and restored by the famed actor Jeremy Irons.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

The oldest licensed distillery in Ireland.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

Petrified footprints of one of the very first vertebrates to walk on land.

A stunning Victorian abbey and walled garden on a lakefront.

The home of Ireland's last leprechauns is officially protected by the European Union.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.