One summer, I was able to travel to Washington D.C. While I was there, I was able to visit the National Air and Space Museum. It was a fantastic sight to visit with many different attractions throughout the large building.

https://washington-org.s3.amazonaws.com/s3fs-public/smothsonian-air-space-museum-exterior-credit-eric-long.jpg

The architecture of the outside of the building was nothing extraordinary, but the inside was filled with plane and rocket ship models from different generations. I liked how the building was set up in the way of going to and from each floor. Rather than have an enclosed staircase, there were ramps and stairs out in the open, allowing visitors to be able to continue to look at the displays on their way up or down. There were many areas to explore and see in the big building.

https://upload.wikimedia.org/wikipedia/commons/a/ac/National_Air_and_Space_Museum_Entrance.JPG