This enchanting Victorian estate was home to the world's first hydroelectric power generator.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

This 13th century castle is chock full of ghosts and impossibly rare cows.

The oldest working mechanical clock in the world.

Seat of the Duke and Duchess of Devonshire for centuries.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

6000-year-old site covered in more than 50 megaliths.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

Largest lake in Great Britain measured by surface area.

Eyam took steps to quarantine themselves and keep the plague from spreading.

This haunting stone chasm is a hotbed of mossy rock and English legend.

Three columns of volcanic rock shoot out of the ocean.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

The site of the first battle of World War II.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

An eccentric collection of antique items shares space with a prop-quality witchcraft museum.

Three bridges and one giant canyon make up this fantastic Spanish settlement.