A giant scrawl on the skyline of south London.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

This one has sailed five times as far as Sir Francis Drake's famous ship.

This ancient Egyptian obelisk still bears the wounds of World War I.

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

A unique botanical garden housed in three giant geodesic domes.

A museum within a museum, devoted to history's most questionable medical devices.

This giant roadside goose has been hailing travelers into a small Ontario town for over 50 years.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

A massive sea stack famous for its appearance in The Goonies.

A giant sculpture dedicated to a staple of South Bend food culture.

Sleep beneath the big screen at this old-school movie theater.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A wall of chewing gum moonlights as collective art.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

Stroll through a wonderland of stupendous moss-covered trees.

Shoreline strewn with the remains of ghostly fallen trees.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

One man's eclectic collection of treasures found at sea.