After Dick Marconi made a fortune manufacturing vitamins, supplements, and weight loss products, he decided to channel his money into two things: collecting cars and helping children’s charities. His father had taught him to “learn, earn, and return,” which is why Marconi’s raised millions for various causes.

In 1994, Marconi purchased a former salad oil manufacturing facility, took it apart, and turned it into an automotive museum, with the goal of renting it out for private events and donating the income. It’s now open to the public seven days a week, and entry’ll only cost you a donation of any size you’d like.

What will you find inside? A good mix of American muscle and European exotica—about 75 cars in total. There’s really something for everyone to drool over, so if you’re in Tustin, California – about 60 km southeast of Los Angeles – make the time to visit the Marconi Museum.