St. Joseph's Cathedral, located in the heart of Hanoi Old Quarter, is a stunning example of French colonial architecture. This Roman Catholic cathedral was built in the late 19th century and is one of the oldest churches in Hanoi. Admire the beautiful neo-gothic design, step inside to marvel at the intricate stained glass windows and ornate altar, or simply sit outside and soak in the peaceful atmosphere. The cathedral is especially enchanting in the evening when it is illuminated.