What is the most unique Marriott hotel you’ve stayed at in the U.S?

Hello everyone! I am trying to find a nice weekend trip with my family to a unique Marriott hotel. I was trying to find the most unique hotel available to book to show them a good time. I’m pretty flexible with anywhere in the US. If not unique, what about hotels that have things to do around them within walking distance/ 10 minute drive? If you have any recommendations, it would be greatly appreciated!