Los Angeles is a famous movie city and one of the major cities on the west coast of the U.S. The weather in Los Angeles in December is warm and pleasant, and it is the Hollywood movie awards season, so it attracts a lot of movie buffs and celebrities to go there. In Los Angeles, you can visit attractions such as Hollywood movie studios and Universal Studios, as well as enjoy performances by the Los Angeles Symphony Orchestra, and enjoy the sun and waves on the beach. In addition, the food and shopping in Los Angeles are well worth a visit.

San Francisco is one of the famous tourist cities in the United States, and one of the important cities on the west coast of the U.S. In San Francisco in December, the weather is slightly cooler, but at this time it is the occasion of Thanksgiving Day and Christmas Day, the whole city is filled with a strong festive atmosphere. In San Francisco, you can visit attractions such as the Golden Gate Bridge and Ellis Island, visit museums and art galleries, enjoy performances by street performers, and taste authentic Chinese food in Chinatown. In addition, shopping and food in San Francisco are also well worth visiting.

Las Vegas is one of the famous gambling cities in the United States and one of the important cities in the western part of the U.S. In December, the weather in Las Vegas is suitable, and it is the time of Christmas and New Year, so the whole city is filled with a strong festive atmosphere. In Las Vegas, you can enjoy various shows and performances, such as magic and lap dances, go to the casinos to have a try, and enjoy hot spring baths in the open-air hot springs. In addition, the shopping and food in Las Vegas are also very worth visiting.

Orlando is one of the famous tourist cities in the U.S., located in the central part of Florida.The weather is warm and pleasant in Orlando in December, when it is the time of Christmas and New Year's holidays, which attracts a lot of families to go on vacation. In Orlando, you can visit theme parks such as Disneyland and Universal Studios, visit various museums and science and technology museums, enjoy performances of street performers, and buy various commodities in Orlando's shopping centers. In addition, Orlando is very famous for its food.

Whether you prefer a bustling city, a movie city, a tourist city or a gambling city and all other different types of attractions, you can choose a destination that suits your interests and preferences. However, it is important to note that since December is a major holiday season in the United States, it is more crowded with tourists and you need to plan and book your trip well in advance.