Introduction to the Hamburg Case Pavilion: The Hamburg Pavilion is a unique building that does not require air conditioning or heating, but can maintain a constant indoor temperature of about 25°C in all seasons. The external energy consumed by the building is only 10% of that of ordinary houses. "The prototype is the "HafenCity" project in Hamburg. Through redesign and transformation, this old city will be built into a large commercial and residential community with a large number of ecological buildings. This is also one of the largest urban reconstruction projects in Europe. . A three-dimensional "wishes tree" running through each floor in the case museum is an innovative visitor guidance system, showing the wishes of Hamburg residents in Germany for future urban life, as well as Hamburg's response to these wishes, such as multimedia and manual touch screens. This interactive module keeps visitors busy, presenting an all-round, three-dimensional burger.