I thought of the British Library. Books, books, glorious knowledge!
Then there's the Sydney Opera House - for the location and performances.
There's also the whole Night at the Museum idea. Very cool that some museums, like the Smithsonian are making that possible with sleepovers.
Or a wilderness retreat, although how to choose between all the glorious possibilities, I don't know. Lions in Africa, tigers in India, echidnas in Australia. LOL see, Australian wildlife isn't all out to kill you!
Maybe a cave home, like those in Matera, Italy or Cappadocia, Turkey. Or the hobbit house in New Zealand.
But I think I'd be happiest in a lighthouse. I can't decide on which one, but the romance of it, the sense of isolation, and the underlying metaphorical idea of seeing clearly all appeal.
My romance novella, Light Kisses, has a hero with a lighthouse. It's free on Amazon till Sunday April 28. Link: https://www.amazon.com/Light-Kisses-Jenny-Schwartz-ebook/dp/B00Y20A1PS/