Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

This giant temperature attraction created some giant electric bills.

The world’s largest concentrated solar plant generates as many problems as megawatts.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Most-visited and most-photographed slot canyon in the American Southwest.

Dramatic river bend surrounds a natural red-rocked pedestal.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

Don't blink or you'll miss it.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A massive volcanic plug is now a protected area that hosts a number of bird species.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

The Laureates here get something even more coveted than a Nobel Prize: free parking for life.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

The Flatiron Building's storied West Coast cousin is a lot more into religion.

A wall of chewing gum moonlights as collective art.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.