Is there a wait to get in? Like how some places have 1 year long Waits to get in

Nope. We just walked in with no problem.

When I was there in early August 2018, there was no wait to get it.

Nope, none at all. But does get packed, so that makes it a bit uncomfortable if you really want to take the time to see and read all the crazy letters and articles. It does get stuffy with everyone. Best time is when they first open or weekday. But it's super cool and interesting