1. San Diego is known as "America’s Finest City" thanks to its year-round mild weather, beautiful beaches, and laid-back vibe.
 

2. The San Diego Zoo is one of the most famous zoos in the world, housing over 12,000 animals across 650 species.
 

3. The city is the birthplace of California, as it was the first place Europeans settled on the West Coast.
 

4. San Diego has more small farms than any other U.S. city and is the nation’s top producer of avocados.
 

5. The waters off San Diego are home to one of the largest naval fleets in the world, with a strong military presence, including the massive Naval Base San Diego.