<Li> 1968 Neue Nationalgalerie--Modern Art Museum, Berlin, Germany </Li> <Li> 1965 - 68 Brown Pavilion, Museum of Fine Art, Houston </Li> <Li> 1967 - 69 Toronto - Dominion Centre--Office Tower Complex, Toronto, Canada </Li> <Li> 1969 Filling station--Nuns' Island, Montreal, Canada (closed) </Li>

Who is considered the master of perfect design and balanced composition