One of the best collections of historic railroad locomotives and cars in the country moved to Frisco in 2013. Some famous locomotives and train cars are on display outside; however, visits can require some advance planning. Due to museum construction, at times you can't self-guide your way around the site and instead have to go on a guided tour, which may only happen a few times per week. Check details in advance.
When you can get in, the huge collection includes a Union Pacific Big Boy, one of the very largest steam locomotives ever built. Note that tours may depart from the Frisco Heritage Museum (6455 Page St), which is about half a mile north of the trains and which has a small exhibit about the museum's holdings.