Built for an exposition in 1915, these horticultural displays have stood the test of time.

A magnificent, reportedly haunted mansion built for a composer by Spiritualists.

The Giant Lemon of Lemon Grove.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

World's largest collection of serial killer artwork and other macabre exhibits.

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

An exotic wildlife habitat right off The Strip.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

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 neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The wild west is still alive and well at this authentic mining town watering hole.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

Because there's no place like home.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

The private clubhouse for the members of the Academy of Magical Arts.

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

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

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

The oldest standing structure in downtown San Diego.

One of the largest trees of its kind in California.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

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

This golf ball–shaped former desert real estate office now houses a UFO museum.