The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Portlandia is the second-largest copper repoussé statue in the United States.

A sculpture of a salmon swimming through a brick building.

10,000 flowered plants bloom in the City of Roses.

Tiny horses tethered to antique rings are scattered around the city.

This sandstone mansion was the home of two of Oregon's most important pioneers.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A public fountain that spouts "health water" from a nearby spring.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

Folk art crafted from discarded vegetable crates.

These cinderblock farmhouses were actually World War II radar stations in disguise.

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

A simple plaque remembers a California island massacre that claimed more than 100 lives.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Humboldt's human-powered sculptures race across land and sea for days on end in a wacky quest for dominance.

Canyon walls shrouded in ferns.

World's largest bell sits on the grounds of the Kremlin in Moscow.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Thousands of biblical and pagan images are carved into this small 12th-century church.

300-year-old villagers houses and traditional churches preserve a nearly lost piece of Russian history.

This lurid German fountain plots the sad course of marriage from dating to death.

A 12th-century fortress containing some of Berlin's oldest buildings.