Union Depot was the dream of railroad baron James J. Hill and a major construction project in Saint Paul's history. Hear how railroads literally shaped the city and the fiery past that led to the depot’s creation. Includes visits to some areas not open to the public. This tour will happen rain or shine. Tour Activity Rating: 3 (Extensive walking, stairs, and standing) Tour begins at the Saint Paul's Union Depot, 214 4th Street East (inside the front entrance )