Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

One of the largest trees of its kind in California.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

North America's largest accredited model railroad museum.

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

This little blue house pokes out over the campus of UC San Diego, seven stories high.

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

San Diego's most historic and haunted home.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

A museum devoted entirely to the rattlesnakes and snake-related art.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

Home of the International Space Hall of Fame.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Former villa and estate of James Deering developed to preserve native tropical forests.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

An amazing stag sculpture constructed entirely of discarded materials.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

A mysterious castle built as a monument to lost love.

Where monkeys run wild and the humans are caged.