Don't forget the Rothschild House overlooks Whidbey Island in Port Townshend.
https://www.jchsmuseum.org/Sites/RothschildHouse.html
https://www.hauntedhouses.com/states/wa/rothschild_house.htm
https://www.nytimes.com/1998/10/18/travel/a-town-that-big-dreams-built.html