If you are a Jurassic fan and a resident of the USA but haven't been to Chicago's Field Museum, you need to push that to the top of your list. The museum is best known for "Sue" the Tyrannosaurus Rex that usually occupies the main entrance hall. The rest of the museum has some great information and is informative, but Sue is the reason you need to head to Chicago. Sue is the largest, most extensive (over 90% complete) and best preserved T-Rex ever found.
Visit the website (https://www.fieldmuseum.org/) and plan your trip.
Sue's story is complicated and deep. If you want to know more about her, the documentary "Dinosaur 13" tells her story and is available via Netflix.
Although they haven't been pulling dinosaurs out of the La Brea Tar Pits located in Los Angeles, it is a very interesting museum and site. The pits themselves are about 50,000 years old (so about 65 million years too late for dinosaurs) but it is still very interesting to see. The tar pits are located in the middle of the city, which is a sight in itself. Seeing the actual pits, which are still being explored and the number of fossils they have pulled out of the pits that are now on display in the museum is truly an amazing thing.
Visit the website (https://tarpits.org/) and plan your trip.