San Diego's most historic and haunted home.

This historic graveyard was partially paved over to create a streetcar line.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

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

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

One of the largest trees of its kind in California.

The Giant Lemon of Lemon Grove.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Along a California highway is a kind of Jurassic Park made of metal.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

The freeway that never was.

A world-class observatory in the California desert.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The "lovely red Vega" of the legendary record-settling pilot.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A couple turned their front yard into an artistic masterpiece.

This San Diego museum is dedicated to preserving women’s historic achievements.