Yvonne Tepper

Beautiful site! This place starts off at the main building which is a patent museum displaying the actual models of inventions when people applied for a patent. After that building, you can either walk along the path that guides you through the estate that contains the various buildings that were used in the preparation and manufacturing of gunpowder or take a shuttle that passes by every 15 to 20 minutes. Essentially it's a hop on-hop off shuttle. There is no additional fee for the shuttle.
You get to also go through the main house where the family lives and it's just stunning. Everyone there is super knowledgeable and informative. I highly recommend this place. It's extremely affordable and you can go at various times of the year to enjoy either the gorgeous summer landscaping or during the fall to see the leaves turning.