It was with great surprise and sadness that I discovered today that one of the great museums run by the National Park Service has closed its doors. The Museum of Westward Expansion actually closed in February of 2015. This museum, located under the Arch in St. Louis, laid out in great detail all the various physical, historical, and cultural currents that flowed together to compel people to push the boundaries of our country farther and farther. But, as the linked article points out, it is making way for a new museum dedicated more specifically to St. Louis' place in that push. Here's looking forward to the new experience on my next visit to that great city.