Too chicken to join your friends up in the arch? No problem, explore this museum. Lots of history with nothing too fancy and its free if you get past the metal detectors!! Have fun.

This is located under the Arch. It has some stunning pictures, floor to ceiling of other national parks, as well as various life sized animals. Many small displays of clothing and cooking utensils were very interesting. The Peace Medal display was also very interesting. It is free once young through the security lines.

Very enjoyable part of the Arch experience. Chronicles history of Expansion with tools, transportation, weaponry and some Indian history.

This museum is a wonderful place to learn about the part of our nation's history when the last frontier started at the Mississippi. We forget that sometimes and this museum is a great reminder of how much our country has changed, and not that long ago either.

Learned a lot about the Lewis and Clark expedition and the native Americans they met along the way. Very well done.

My wife and I visited the Museum of Western Expansion on our first evening in St Louis. It is filled with great exhibits about the Louisiana Purchase and our countries history. It is large enough that you don’t feel cramped by the number of people that pass though it daily. The only thing I didn’t like was how it was... More

This is in the base of the Arch. It's a really neat museum about the Oregon Trail and how the settlers travelled. There are lots of photos and replicated items. And, it's free!

We are a family of 4 traveling with a 6 and 8 year old. We had a great time. If you have a love of history you could easily spend hours and hours here. The kids enjoyed the displays and there is an extensive amount of info about the Lewis and Clark experience. Definitely a must see especially if you... More

This museum gives a quick glimpse of western expansion. The set up was a little confusing but we were still able to see everything and the displays were very nice. This museum is UNDER the arch - so looking at a map, it doesn't really show you that. It's pretty easy to figure out though once you get to the... More