By public opinion, this is Canada's knottiest tree.

An operating lighthouse from the 1860s.

Possibly the world's largest coin stands just outside of a Canadian science center.

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

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

A remarkably well preserved tower dating all the way back to the Iron Age.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Britain's only herd of free-ranging reindeer.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

A glacial pothole was once a hideout for a notorious Scottish outlaw.

A scattered trail of street art adds a pop of color to the city's stark structures.

This modern labyrinth lies in the shadow of a ruined medieval castle.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

This observatory within Europe's first dark sky park offers stunning views of the night sky.

A local tree surgeon has created a whimsical walk full of carved tree stumps near Scotland's Loch Lomond.

This cramped crevasse saw the entire population of its island suffocated inside its depths.

This Scottish bridge seems to compel dogs to leap to their death.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.