Here's an ideal itinerary for 3 days in Los Angeles:

Day 1:

Start your day with a visit to the iconic Hollywood Walk of Fame. Take a stroll down the street and see the stars of your favorite celebrities. After that, head over to the Griffith Observatory for some breathtaking views of the city. You can also explore the exhibits inside the observatory and learn about astronomy. In the afternoon, visit the Getty Center, which is home to an impressive collection of art from around the world. End your day by taking a sunset hike at Runyon Canyon Park.

Day 2:

Begin your day by visiting the famous Santa Monica Pier. Enjoy the carnival rides, games, and food stalls. After that, take a walk along the beach and soak up the sun. In the afternoon, head over to the Museum of Contemporary Art (MOCA) to see some amazing contemporary art pieces. Later, visit the Sunset Strip, which is known for its vibrant nightlife. You can enjoy live music, comedy shows, and delicious food at one of the many bars and restaurants.

Day 3:

Start your day by visiting the Universal Studios Hollywood. Experience the thrill of the rides, watch live shows, and explore the sets of your favorite movies and TV shows. In the afternoon, visit the Los Angeles County Museum of Art (LACMA), which is home to an extensive collection of art from different cultures and time periods. End your day by taking a stroll through the Beverly Hills neighborhood and window shopping at the high-end boutiques.

Hope this helps you plan your trip to Los Angeles!