Champion Trees. These trees are the largest in your state or, if they're big enough, the country. Check with your city's parks department or your state's cooperative extension service to find out about tours of these big trees. Many tours are free or low cost because they are led by Master Gardeners or other organizations that require a certain number of education hours. Tour hosts are usually very enthusiastic and helpful, especially when engaging teens and children.
Read more about Champion Trees in Rhode Island.