Hang Nga Villa, later on called Crazy House, because its first name has been used for some other places. Within the end of the past century in Vietnam as well as in several places in the world, nature and the environment have been much destroyed. At present men have paid too dear for it. With the voice of architecture I wish to lead the men to come back to nature, keep close touch with nature and love it and not make full use of it and destroy it. Hang Nga (the Moon) Villa also gives expression to the life and work style of myself and at the same time the creative style of an architect. After being graduate at the architecture university of Moscow (1959 - 1965) and then in the stage of doctorate schooling (1969 - 1972) I came back to Hanoi and had official business in Architecture Design Institutes of the Building Ministry, Cultural Ministry. In 1983, I was transferred to Dalat and worked at the Building Design Institute.