A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

An alley covered with 20 years of bubble gum.

A remote crossroads honoring a fallen talent.

A trash dump made beautiful by nature's power.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

San Diego's most historic and haunted home.

Lemon Grove, California is known for its giant lemon...and mummified bodies.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Follow the original medieval paths that wind through this intriguing section of the city.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The California capital city once stood 10 feet lower than it does today.

The palatial McDonald's that inspired Wesley Willis.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This historic hotel invented the chocolate brownie.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

These pretty kitties killed and ate as many as 135 railway workers.

All of Chicago's wood-paved streets are long gone but two alleys remain.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

A music-filled, booze-soaked oasis in the desert.