Vietnamese currency is called the “dong” and is very interesting. Here $1 is more than 20,000 VND and thus you got to be careful here while paying money. For instance to stay in a hotel at Vietnam or have dinner you pay approx 50,000-100,000 VND. This makes it confusing as well. If you pay 100,000 instead of 10,000 here nobody will tell you about this mistake. Vietnamese people take advantage of foreign money here.