The Carson Mansion, located in Eureka, California. I took this photo back in 2014 when I was home to visit family.
@paxsequoia is this the one with doors that lead to nowhere?
@PoliPhiNosaur You're thinking of the Winchester Mystery House in San Jose. This is about 6 hours north of that.
@PoliPhiNosaur No need to apologize! I can see why you'd ask! Thank you for the compliment!