Since I was asked for a source for undersea base-looking feature.
A Huffington Post source for the Californian undersea base is here
The Truth Behind The Malibu Underwater ‘Alien Base’
and a Jimmy Church Radio link to another source is here
MASSIVE DEEP UNDERWATER BASE DISCOVERED OFF MALIBU
In my opinion, the vertical columns DO look strangely out-of-place and are unusual however, the ex-FBI man in the Huffpost article makes some good points and gives us a better perspective on it.