If you simply like cars, you’ll love visiting the Marconi Automotive Museum in Tustin, CA.
There is a good mix of American and European machinery, plus race cars and bikes. It is open to the public, Monday to Friday, from 9 am to 5 pm. However, the day I went, the museum was actually closed to the public, as it was prepping for a private event to take place that evening.
Still, after speaking to the staff, they were more than gracious enough to let me walk around and take pictures, and offered their help with the article; which can be read through this link: Ten Cars Worth Drooling Over At The Marconi Museum