To fully understand the historical facts that lead to the American Revolution, tourists will see important historical landmarks such as Paul Revere House, monuments to Ben Franklin, Old North Church, and the 18th-century Old State House — which is the former seat of the Massachusetts General Court as well as one of the oldest public buildings in the United States. Of course, one of the most significant places to visit in the city is Boston Common, the oldest urban park in the United States, open since 1634. Next to it, guests of the Free Tour of Essential Boston will also find the charming Park Street Church and the famous Granary Burying Ground. Samuel Adams and Paul Revere are among the patriots buried at this moving stop on the Freedom Trail.