The Hart Nautical Gallery is part of the MIT Museum in Cambridge, Massachusetts. Admisaion to the gallery is free. It can be accessed through the MIT entrance at 77 Massachusetts Avenue. There are no signs pointing the way. You are on your own when you get there. The gallery is one large room plus a hallway with displays of full-hull ship models that chronicle several centuries of ship building and design. I didn't count myself, but the website said there were 40 models. There are some ship blueprints displayed as posters on the walls. At first, I had the same reaction as a few other reviewers, ho-hum. But the intricate detail of the models brought me into the lives of the people who designed and built these ships and the lives of the people who sailed them. As a matter of fact, I would have liked to know more about the number of sailors it took to launch a voyage. It is well worth a stop. I put a slideshow of some additional photos of the models on YouTube.