Once a French radio transmission station, an old French villa in Hanoi's Dai La street is the place where Vietnam's Declaration of Independence was broadcast to all over the country and the world on September 7, 1945. 

In the face of strong urbanisation, the preservation of unique cultural and architectural heritages in Hanoi is more urgent than ever.

Vietnamese architect Pham Thanh Son has found a convenient position to work on his sketching of an ancient house on Hang Ruoi Street.