If art and architecture isn't really your thing; if you look for a more shivering, bizarre and creepy experience, you might be better off by visiting the Siriraj Medical Museum in Bangkok. It will be definitely an experience that you won't forget easily. Besides learning a lot about human anatomy, diseases, forensics and medical history in Thailand, you will have the chance to see lots of embalmed and dissected dead human bodies and organs.
If you come to Bangkok and have no idea what to do or where to go, this list is a good help to get an overview of popular activities. From Cooking classes to Swimming on rooftops, Muay Thai, Sightseeing and others. There are numerous things you should do in Bangkok