Highland Coffee

Built by the French during the colonial period, it usually hosts classical music concerts and local Vietnamese plays and pop concerts rather than operas.

Hanoi Opera House

Music Garden

Nhà Hàng Amato

The Hanoi Opera House (French: Opéra de Hanoï), or the Grand Opera House (French: Grand Opéra, Vietnamese: Nhà hát Lớn Hà Nội) is an opera house in central Hanoi, Vietnam. It is located at August Revolution Square, anchoring the head of Tràng Tiền street. Originally built by the French colonial administration as the Hanoi Municipal Theater between 1901 and 1911, it is one of three opera houses built during the colonial period in French Indochina, alongside the Haiphong Opera House and Saigon Opera House.

https://en.wikipedia.org/wiki/Hanoi_Opera_House