This colorful boulder serves as a canvas for political statements and artistic expression.

At the base of the Golden Gate Bridge, a small sign basically begs for a high-five.

Radioactivity still cause for concern at this urban explorer's paradise.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

The southernmost postal office in South America.

These markers are used to determine the ground stability of the Strip.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

California's longest-running tourist attraction is a stump.

A wonderfully curated used bookstore in an airport.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

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

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

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The palatial McDonald's that inspired Wesley Willis.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

New Zealand's only running funicular railway.

Referred to as "the crappiest fountain ever," this sculpture has been splashing unknowing passersby since 1969.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

Masterful ceramic fountain and map of the Pacific Basin.

Deco Modern sculptures of the people of the Pacific, cast for the 1939 Golden Gate International Exposition.

One time home to turn of the century explosives, now hidden under the Bay Bridge.