A unique tree house was chosen for accommodation in San Francisco. The male owner Doug moved to the Bay Area 15 years ago to buy the house. When he saw the big tree, he felt that it was too suitable for building a tree house. So in two years, some other people renovated the remaining wood and built the house. After the children went to school, the students especially liked to come to his house to play. Now that the children are grown up, they are inspired when they travel. Why not put them on the Airbnb website and rent them to tourists? The result was a hit, and there were guests almost every night. Although it is like a paradise, it is only 20 minutes away from downtown San Francisco. The price is not low, but it is a rare experience.