Huge winged monument in the United Kingdom.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

A lone pole once used to display a man's corpse now stands empty, but the memory remains.

WWII artifacts, including the building itself.

Vibrant paintings stretch across 600 feet of derelict railway.

This abandoned mausoleum from 1815 sits deep within the forest surrounding Callendar House.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

The little-known second castle that William the Conqueror built in York.

Follow the original medieval paths that wind through this intriguing section of the city.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

This giant wooden treehouse within a sprawling garden has its own eatery.

These upturned herring boats make nifty storage sheds for fishing goods.

England's "pier at the end of the universe" unites astronomy and contemporary architecture.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

This townhouse was once the original home of the Scottish Football Association.

The mark of the Devil's horns on a marble column in Milan.

The last Victorian market in Belfast.

These engineering masterpieces are a dominant feature of the Belfast skyline.

It was once nicknamed "the most bombed hotel in Europe."

Belfast's namesake river still winds below the city center, hidden from sight.

This massive monument has been telling the time for 150 years—at a slight angle.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.