Antiques shop filled with all manner of curious collectibles.

Two graffiti towers stand like ghosts of Vancouver's World War II-era defensive outpost.

The "plyscraper" is the world's tallest building made predominantly out of wood.

A unique spiral staircase that doesn't quite make it up to the top floor.

This quirky piece of naval artillery has been deafening Canadians for over a century.

The colorful, smiling concrete silos of Vancouver.

Housing a morgue, rare and confiscated weapons, and autopsy remains, the Vancouver police museum displays the dark side of Canada.

A high point in Vancouver kitsch.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Human-made caves excavated to hide a secret society of wealthy pagans.

Colin Stokes "got a bit carried away" and built a castle that looks like something out of Tolkien.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

This crumbling folly looks like an enchanted left over from Middle Earth.

This foolish Victorian sea fort was converted to a deluxe hotel.

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