Nhà Thờ Tân Định is a Roman Catholic church in Ho Chi Minh City or Saigon. A well-known local landmark, the church was built about 150 years ago when southern Vietnam was a French colony called Cochinchina, a part of French Indochina. I have no idea what the pink color is about. Da Nang’s Roman Catholic cathedral is also a garish pink.
Bưu điện Trung tâm Sài Gòn: A relic of the French colonial period, the old Central Post Office is a landmark in downtown Saigon, next to the Roman Catholic Notre Dame Basilica. Completed in 1891, I don’t know when the building got its yellow face lift. It is definitely not yellow in older photos.
There are a couple of shops near the Saigon Opera House selling sailing ship models. There may be others elsewhere in the city. I don’t know where the models are made or by whom, but they are quite impressive.