This location is the park headquarters at the Island Ford unit of the park system. The visitors center is located an old summer home built in the 1920s, when the wealthy used to go up to the Sandy Springs/Dunwoody/Roswell area to escape the heat of downtown Atlanta. This is a very nice unit of the park system and will give a good overview of the plant and animal life common to the area and the Chattahoochee River in northern Georgia. Be sure to look up information about the other units of the park system, located throughout the Marietta, Roswell, Duluth, Atlanta, and Cumming areas...there are many hidden gems and trails to be found!
This McDonald's is connected to Grady Hospital, the major public and teaching hospital. Sometimes, it is hit or miss..regarding food and atmosphere. If you are really craving McDonald's it is worth a try or it may be better to go on Georgia State campus nearby and look at their food and drink options.
Going to the Teaching Museum on a field trip is a "rite of passage" for most children in the Fulton County school system. The museum is located in one of the original school buildings for the city of Roswell. While the museum is mainly for school children enrolled in the public school system, you can contact the museum to schedule a visit as an individual. I have not visited this museum since the mid-1990s when I was in elementary school but do have many memories of sitting in the museum auditorium listening to presentations on the Civil War. The building exterior itself is a good example of 1950s, Baushaus like architecture.