Nothing.
As a retired film and TV location scout based in LA I’ve been privileged to see hidden tunnels under the streets of downtown LA, the rooftop of City Hall, the various Studio Lots ( Warner Brothers, Disney, Fox, Paramount), Naval and AirForce bases, Army barracks, Osgood and Farley, Lone Pine’s Alabama Foothills and was able to secure permission to use the not yet opened parkway outside Temecula to film The Fast and The Furious.
But my favorite was getting to scout Cape Canaveral for a TV pilot about Astronauts that never aired.
A native Californian grew up in the Bay Area so have walked across the Golden Gate, was in sec 43, row 21, Section 14 at Candlestick Park Game 3 of the World Series when the quake hit, have walked among Redwoods, hiked into June Lake, gambled at South Shore Lake Tahoe, skied in the Sierras, climbed the Mt Whitney trail, hung out in Death Valley. Have seenthe Salton Sea, visited General Grant, General Sherman, Methuselah and Jedidiah Smith Redwoods National Park, Sacramento, Yreka, Raymond Burr Vineyards, Napa, Sonoma, Pt Lobos, UC Berkeley, Stanford, the Central Valley, Mt Lassen, Mt Shasta, Clear Lake, San Diego, Desert Hot Springs, Walt’s House ( aka Disneyland) Palm Springs, Mt San Jacinto, Yosemite, Big Sur, Morro Bay, Petaluma, Happy Camp, Eureka, Turlock, and….
Spent a few years out of state and returned in the 80’s. Moved to SoCal to work in the movie business. Until a 4 story apartment building went up across the street could see the Hollwyood Sign from my window.
So nope, haven’t missed much in my home State of California.