A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Countless grotesque faces stare out from this eerie Prague art wall.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Now a public art piece, this curious metal feature originally advertised a tinsmith's services.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

It took years to decode its mysterious messages.

Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

A century-old network of freight tunnels underneath the city's historic business district.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

This former open-pit manganese mine is now a massive graffiti canvas.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

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

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

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

A sculpture of a salmon swimming through a brick building.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

This frequently-photographed waterfall takes only a short hike to visit.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

On the Oregon coast is a natural hole that seems to be draining the sea.

Commonly referred to as the most photographed Victorian home in the United States.