San Diego

San Diego needs 3 days: the San Diego Zoo, one of the world's best regarded for its immersive habitats and panda population, on one day, the USS Midway Museum, a historic aircraft carrier turned museum in the harbor, on another, and touring Balboa Park -with its 17 museums and the historic Old Town district- on the third. June-October is best, with California's most stable weather. It's mid-to-high priced for the US. Nicknamed 'America's Finest City', it combines mild year-round weather with urban beaches, a nationally renowned craft beer scene, and the Mexican border just 30 minutes away, making it one of the country's most dynamic binational cities.