The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

A Roman-style column in Oregon hides a spiral staircase inside.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

This blowhole is supposedly caused by a trapped monster.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Roadside collection of 65,000 signs.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

Two massive rock outcroppings on the Oregon coastline.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Ancient catacombs form the foundation for this Rococo orgy of a church.

A collection of grotesques lines the walls of this Italian villa.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."

This historic Victorian hotel has a scandalous history of affairs and murder.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

This conservatory allows a little bit of the tropics to thrive in the middle of a major Canadian city.

The lake that fills and empties itself at random.

California's own majestic geyser is powered by a subterranean volcano.

Protecting the dead from opportunistic body snatchers.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.