I was in Shanghai last week and a friend recommended this Mahler Villa Hotel to me. It was really beautiful. Structured in Norwegian architectural style, it was built in the 50s by a Jew named Mahler as his private mansion. Although situated right in the city center between Nanjing Road and Huihai Road, the two most busy shopping streets in Shanghai, it is surprisingly quiet and tranquil. Has only 45 rooms and almost always fully booked.