What a great historical park! The Thomas Edison National Historical Park is divided into two different parts at two different locations. The first park is Edison's "invention factory" at Menlo Park. Here you can see the places that Edison and his employees worked to develop some of the greatest inventions in all of history. The main factory building contains a library that Edison used for research, a music room that Edison worked to develop the phonograph in, a drawing room, and a film room (kinetograph). The factory work floors showcase many of Edison's inventions. Machines that Edison and his employees used are left fully intact for all to see. Mostly everything presented are historic originals. Across the way from the main factory building is the Chemistry Lab where Edison worked with employees. Again, original equipment is left fully intact in this lab. It was here that Edison created the practical storage battery. Finally, the main campus contains the Visitor Center with a gift shop. You can also watch a film about Edison in this part of the park. Park rangers and volunteers were friendly and helpful. The second part of the park is Edison's house called Glenmont. To go to Glenmont you should reserve a ticket ahead of time through the park website. You will have to drive into a neighborhood a little less than a mile away from the Menlo Park laboratory. The house is a spectacular Gilded Age mansion where Edison, his second wife, and kids lived. The house is located in the first planned community in the US. Although a different owner built the house under suspicious circumstances Edison bought the house and expanded it. All decorations and furniture are original to the house. Perhaps, the house library is most interesting in that none of the books in the house were ever even opened or used. Edison's garage is one of a kind featuring not only a Model T, but some early electric cars from the 1900's. A greenhouse is also on the property. In the back of the house is where Edison and his wife are buried. Make sure to go to both places if visiting the park. It is hard to find a better museum of historical importance anywhere.