Welcome to the Chartwell Estate. Situated across 10.4 acres of land in the foothills of the Santa Monica Mountains, the property features a massive 18th century-style French chateau, an architecturally significant 5-bedroom Wallace Neff guest house, canyon trails, gardens, and a network of underground tunnels to connect it all.
Comes with a really strange BBQ area. That cant be seen from the outside.
Oh, and I nearly forgot, it's got a dungeon attached……..
https://video.architecturaldigest.com/watch/on-the-market-inside-a-195m-bel-air-estate-with-secret-tunnels