Next, make your way to Hai Duong Cathedral, also known as Phuong Hoang Church. This stunning Catholic church is an architectural gem, featuring a blend of Gothic and Romanesque styles. Step inside to admire the intricate stained glass windows, ornate decorations, and peaceful ambiance. Take a moment for quiet reflection or attend a mass if you wish. The cathedral is a symbol of religious harmony in Hai Duong and a must-visit for architecture enthusiasts.