grand tour
noun
1- historical a cultural tour of Europe conventionally undertaken, especially in the 18th century, by a young man of the upper classes as a part of his education〈史〉大旅行（尤指18世纪作为上层社会年轻人教育一部分的欧洲文化之旅）。
1.1
- informal a guided tour or inspection of a building, exhibition, etc.（房屋、展览等的）参观, 巡视：
he gave me the grand tour of his ranch and studio.
他领我参观了他的牧场和单间公寓。