Hanoi Tea House | Cam An Xa is a tea shop in a small alley in Hanoi that sells Vietnamese tea and banh mi. At tea tastings and traditional tea ceremonies, guests try several kinds of tea while the owner explains tea history and Vietnamese culture. The afternoon tea ceremony can be booked on the same day in the morning, and conversations over tea sometimes run two to three hours. The entrance sits deep in a small alley, which makes it hard to find.