An optical Illusion once believed to be an electrical phenomenon.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

A vortex fountain that seems to rise out of the ground.

The view that inspired the scenes of Dracula's first landing in England.

The last resting place of the famous Native American princess is marked by a haunting monument.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

One of the oldest trees in Britain may have been witness to some of the country's formative moments.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

An architectural oddity hides in plain sight on this iconic London bridge.

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

This restaurant was removed from the famed sister ship of the Titanic and placed within a hotel.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

Grotto replete with mystical designs laid out in glued shell mosaics.

These ornate arches show how the course of the River Thames has changed.

A peace symbol in Northern Ireland is among the world's largest hedge mazes.

The Tudor-style cottage in the middle of the square is not quite what it seems.

The remains of centuries of copper mining appear like an alien landscape.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.