But it took 30 years in the United States for the architect to find a place to play .
It 's a passion stemming from Doan 's childhood in Saigon , now known as Ho Chi Minh City , in Vietnam .
It took 30 years in the United States for the architect to find a place to play .
It 's a passion stemming from Doan 's childhood in Saigon , now known as Ho Chi Minh City , in Vietnam .