All Seasons Travel Agency Inc

While the name may echo the classic television show Star Trek, there's nothing otherworldly about the Vulcan, the world's largest cast-iron sculpture. This visually compelling structure was created to pay tribute to the city's early iron industry. It weighs over 60 tons, stands over 55-feet-tall and was originally constructed for the 1904 St. Louis World's Fair. Today the attraction stands next to an observation tower in the center of Vulcan Park that allows a somewhat closer look at this fascinating piece of history.