Hidden in Portland’s West Hills, a 170-year-old marker literally stakes out the Pacific Northwest.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

A mysterious "wedding cake" castle in the middle of the urban desert.

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

Petroglyphs, bird watching, and a 100-year-old Ranch in one location.

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

An art supply shop holds the secrets of this quiet neighborhood's raucous Barbary Coast past.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A free, public museum dedicated to the fascinating science of sight.

A modern mechanical planetary system, part of a 10,000 year clock.

Visible below the waves are memorials to the city's Gold Rush dead.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Guns that have been defending San Francisco since 1904.

Built in 1906, this unique building was the first Hindu temple in the United States.

Social saloon from a scrapped trans-Pacific 19th century steamer.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.