In 1929, a landslide in San Pedro, California, caused a neighborhood of exclusive homes to tumble into the ocean. Today, the area is called “Sunken City” by locals.
It now is filled with graffiti and looks like a really cool post-apocalyptic wasteland.
To reach Sunken City go to Point Fermin Park. On the far left of the park you will see some gates and a restricted area. Climb or go under the fence to enter.
Warning: It is technically trespassing! You could get a ticket if caught entering.