I am currently in Montreal for the second time. The first trip was short, but I visited the Montreal Museum of Archaeology and History, and I really liked it. This trip is also short, but I had time to visit the museum again. Most of the museum is underground in an archeological site of old Montreal. You can walk around the stone walls of buildings that used to stand on the site. The museum does a really nice job of projecting onto the ruins lines and text, so you can understand at what you are looking. They also have stairs, so you can climb on top of ruins and look down onto them without damaging them. Further, in some areas, they have lights hanging from the ceiling that light up during an audio explanation of what is at the site, so the lights emphasize what the used to be at the site based on the ruins.