If you're ever in Cuba, Hemingway's house makes a great visit. You can't go into the house itself, but it has been preserved as it was left and has many large openings, so you can see basically every section. You can also walk around the extensive grounds.

I enjoyed looking at all the book titles Hemingway had, and his arrangement of typewriters, and other small elements of daily living.

It's an easy drive outside Havana.

Can confirm. A beautiful place to visit.