After a full stomach on a tasty hot and spicy lunch in Bangkok probalby the best place to keep away from is the Museum of Forensic Medicine. Here you can see some interesting and sometimes gastly body parts and images of terrible crimes and the bizzare. The museum has a huge collection of bodies, and organs including some horrible sights that would make the strongest person sick. Some of the exhibits have an artistic touch others are just plain in your face. there are victims with gun shot wounds, accident victims, deformities and plenty of organs in various states. A place you really need to prepare your self before you visit and deal with once you leave.. Only for the brave.
For more information http://www.si.mahidol.ac.th/museums/en/m2.htm
(note some images may be too graphic for some people)