The National Museum of Transportation (TNMOT) is a private, 42-acre transportation museum in the Kirkwood suburb of St. Louis, Missouri. Founded in 1944, it restores, preserves, and displays a wide variety of vehicles spanning 15 decades of American history: cars, boats, aircraft, and in particular, locomotives and railroad equipment from around the United States. The museum is also home to a research library of transportation-related memorabilia and documents. At the southwest corner of the property is West Barretts Tunnel. Built in 1853, it is one of a pair of tunnels that were the first to operate west of the Mississippi River. It was added to the National Register of Historic Places in 1978. The museum has its own railway spur to an active main line formerly owned by the Missouri Pacific Railroad, now by the Union Pacific Railroad. This has allowed the museum to take possession of large and unusual pieces of railroad equipment. A miniature railroad operates around a loop of track near the parking lot and a full-sized restored trolley operates Thursday–Sunday from April through October.

Vehicles and equipment

Railroad

Among its railroad items are:

Automobiles

The Earl C. Lindburg Automotive Center contains 25 vehicles, including:

Boats and aircraft

On display are a Missouri River towboat and two airplanes: a C-47 Skytrain at the main gate and a T-33 Shooting Star. In 2021, the museum opened a permanent exhibition of some 100 model airplanes donated by Sanford McDonnell, each with a connection to the McDonnell Aircraft Corporation. Beginning in June 2024, employees from Boeing volunteered to restore an F/A-18 Super Hornet that will eventually be displayed at the museum. This particular fighter is the F/A-18 E1, the first F/A-18 Super Hornet ever made.