One Hoi An old house: Tan Ky's light, Phung Hung's frontage or Duc An's books?

The heritage account describes timber framing, connected sections and an open-to-sky courtyard bringing light and ventilation. For an interest in how a long house works, ask where you may observe the relationship between frame, roof and opening. A frontage alone cannot reveal the full layout. If the relevant area is unavailable, the architectural question may remain unanswered; do not force access to private space just to complete photographs.

The heritage account describes a broad-fronted tube trading house, timber columns on stone bases and removable door panels. Choose it to consider how goods, customers and family life shared a building. Historical features do not establish that every door will be operated for visitors. Ask about permitted areas and upstairs access; sacred or family spaces are not automatically galleries.

The museum account connects the house with progressive books and political activity in the early twentieth century. Choose Duc An to read a house through circulating ideas, not only its facade. Give labels and context time, and ask about interpretation language. Do not call every object original or invent tunnels and secret routes without evidence.

For light and structure consider Tan Ky; for trade sharing a home, Phung Hung; for books and intellectual history, Duc An. With two visits, choose two questions rather than two facades for photographs. This is an editorial framework, not a heritage ranking. Confirm current access, visitor hours, ticket conditions, stairs and photography rules. A photograph shows its recorded view, not current room access or proof that every material survives unchanged from construction.