Military-related Displays, Collections, and Museums

There are a ton of great museums, collections, and displays related to the military, military history, etc. We've talked about similar subjects here, so the idea here is to discus & share some of these outstanding collections/displays/museums (both civilian and military) that (directly or indirectly) speak of our military history or tell a story applicable to the military experience; although some may not be military specific, but somehow relate to the military in some way (think the Holocaust Museum, Spy Museum, and others), some may be here in the States, while others may be overseas, and some may be smaller local collections (or displays that have military meaning). Still others may be private or at the HQ or unit level. Please feel free to share any photos, links, stories or anything else necessary to describe your tale; thank you for all that you do, and... see you all in the discussion threads!