These semi-natural waterfalls hint at the park's Victorian-era industrial past.

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

A sea cave with a waterfall and Viking past

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

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

An optical Illusion once believed to be an electrical phenomenon.

A trio of giant megalithic stones in the middle of a golf course.

Legend says this rock was once a chopping block for public executions.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

This abandoned oil depot produces world's longest echo in a manmade structure.

What happened to the three lighthouse keepers who vanished from this place remains a mystery over a century later.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

This Birnam-based garden honors the legacy of 19th-century children’s book author Beatrix Potter.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

This remote Scottish isle is only inhabited by seals, birds, and the memory of a tragic settlement.

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

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

Come for the oysters, stay for the priceless art honoring inventors across history and Scotland's favorite outdoor sports.

This early version of the guillotine was used to execute the man responsible for its construction.

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