Only $1 to get in and kids are free. We went because we are Mormons and wanted to check this out. Not much Mormon history except that it was established by Mormons and then abandoned. Interesting history about how the city of Las Vegas was established. Museum inside with lots of old artifacts. A 10 minute video is worth the watch. The outside artifacts was what was interesting to me. The fort replica was cool and the old adobe building. The spring is there which is why it was settled in the first place. Apparently, there is a wall of the original fort left, but I missed it. Not well marked. Plan an hour or less for this excursion.