The world's largest reflecting pool is just two centimeters deep.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Historic medieval fortified city in southwest France.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

A circle stone within a stone circle.

A open air theatre built on a cliff by an eccentric British woman.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

The largest greenhouse in the world is home to over one million types of plants.

400-year-old garden, restored to beauty.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The beautiful non-repeating pattern honors the Oxford professor who discovered it.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Hidden in plain sight, this creepy sculpture watches from above.

Used as an example in one of the first dictionary entries for "museum" in 1706.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.