Forney Museum of Transportation for Trains and More
"Anything on Wheels!" boasts their website. That means a vast historical display of antique cars, trains, buggies, bicycles, vintage motorcycles, exotic cars, cabooses, and carriages.
Located north of downtown Denver, just off Interstate-70 on Brighton Boulevard. Admission: adults $9, children $5; open seven days a week, but only till 4 p.m.