United States, or America, is a federal republic composed of 50 states. At 3.8 million square miles and with over 320 million people, the country is the world's third largest by total area. Washington D.C is its capital city.
We took the last cruise of the day. Our guide was a retired architect who knew all about the designers and history of many of the buildings we passed. The tour took 90 minutes and went up and down the forks of the river and then out to the locks near Lake Michigan. It was terrifically informative, and the buildings are beautiful as the light changes from daylight to dusk to night. We chose this company because of all the positive reviews. The five star reviews are right.