I suspect I am the last one to find out about this site, but it’s still cool. Great place to research castles for your fantasy novel, or just daydream about how to spend your hypothetical lottery winnings.

Welcome to https://castleist.com

Also, here’s an interesting study from 2018 of how Lake Powell in Colorado suffers from water management rules that favor keeping Lake Mead (downstream of Lake Powell) filled, and by extension favors the lawns, swimming pools and delta smelt of California, the most populous area supplied by Lake Mead.