It is usually fun to go on a vacation to a place you have never been before. Even if it is not terribly far from your home, just another state can be a refreshing place to see. If you are the type of person who simply hasn’t been around the country or not even outside of the country, it will be a novel experience no matter where you choose to go. In terms of beautiful states, Maryland is a good place to go.
Another visiting spot is Washington DC, in Virginia. Perhaps you can do some touring there and then go up to Maryland to cap it all off. Then it would really be a full vacation. Travel with a group of people and find one of the better bus companies in MD. It is surprising to find great luxury bus rides. You could go with cheaper buses which are not luxurious, but you will be disappointed in a short period of time, kicking yourself for not going the luxury route.
Consider the resources you will have for the trip. You will want to give yourself and your group at least 5 days to get the right amount of touring in. It won’t be enough time to see everything interesting with a shorter trip. Besides, you will likely be going from DC to Maryland. At any rate, MD is the destination and you will have done best to work out the sights you want to see ahead of time.
Similarly, book the bus, any tour guides, and hotels ahead of time. At certain times of year and certain special events, all the hotels can be booked and the buses will be too. Determine exactly the route you all want to take. Your tour guide might even take your team delightfully off track to see even better sights.