Mendenhall's Museum of Gasoline Pumps & Petroliana and Motorcycle Museum What a great adventure, firs visit The Mendenhall Museum is private owned and has the largest collection of Petroliana including gasoline pumps, globes and porcelain gas, oil and road signs. There are also race cars, racing memorabilia, license plates, gas & oil items, and other miscellaneous antiques. Lunch at the Hitching Post 2, then the Solvang Vintage Motorcycle Museum