Every September, international competitors flock to the flooded quarries of a tiny Scottish island.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

The longest staircase lock in Britain.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

A close look reveals that the Scottish monument is just slightly off-kilter.

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

From here, the loch appears to take the shape of mainland Scotland.

Scotland's only funicular railway is also the United Kingdom's highest.

This beach runway is off limits during high tide.

A collective artwork that any visitor to the islands of Barra and Vatersay can add to.

This repurposed church offers a more literal way to get closer to the heavens.

This king penguin is a knighted brigadier of the Norwegian Army.

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

A remarkable feat of Victorian engineering across the Firth of Forth.

Andrew Carnegie funded the building of almost 3,000 libraries across the world, this was the first.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

Aside from denoting a public square or market, this medieval structure was also a sign of a town's prosperity.

Wander around the extensive remains of this 12th-century medieval church.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

The ruins of Scottish sea salt production.

Bronze plates placed around this Scottish fishing village form a true-scale model of the solar system.

The remains of a 19th-century carving of what was to be a signal light on the Firth of Forth Estuary.

A site of pagan worship which still attracts people looking for fairies.

This bronze statue was erected to honor a small Scottish town's beloved stray cat.