Royal Barges Museum and Erawan ‘Three Headed Elephant’ Museum are number one on list of the tourists who would love to discover the Thai culture through museums. Tourists choose from a huge variety of themes for the museums they would like to visit. The National Museum, created in the late 19th century, is not only Thailand's oldest one but is also the biggest museum in south-eastern Asia. Do not miss to see the Ancient city, which by itself is an open-air museum.