The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

Towering basalt columns, a creation of fire and ice.

A hand-built folk art installation covered with messages of God's love.

Rainbow-hued local gem in Venice.

The rocks in this arid basin leave trails of movement behind them.

Its buzzing collection honors vibrator history.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A trash dump made beautiful by nature's power.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

One man's homage to the sun continues to grow like a glass fractal.

America's most famous piece of self-built architecture.

A winding path built in secret on the edge of the continent.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A huge musical instrument played by the ocean.