Read the following passage and answer the following questions.
Duong Lam: An ancient Vietnamese village
Duong Lam Village is located in Duong Lam Commune at a 45km distance from Hanoi. It is the birthplace of two kings in the history of Vietnam, Phung Hung and Ngo Quyen, who opened up the long-term self-control and independence period of Vietnam after Bach Dang Victory in the year 938.
All houses, gates, village gates and wells are built of laterite creating an architectural complex, a unique village that is typical for villages in the midlands in the North of Vietnam. At present, there are still nearly old 200 houses and many other historical monuments such as Phung Hung Temple, Ngo Quyen Royal Tomb, Mong Phu Communal House, Ho Gam Hill at which Phung Hung killed tigers to rescue villagers and the temple at which the diplomat Giang Van Minh is worshiped.
How many old houses are there in Duong Lam?
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