It’s really one of those things that you have to see in person and walk up and down along to understand. The scale of it alone is a huge part of what makes it so memorable.

Similarly for Gericault's 'Raft of the Medusa'. I had only seen it in a book and had no idea how big it was. It is enormous. Go see it if you are ever at the Louvre (much more impressive than the Moca Lisa IMHO).