We all know about the brazen bull and the croc pliers, but are there any torture devices/methods that I haven't already read about?
I believe a lot of the more colourful "medieval" torture devices were 19th-century inventions anyway, like the chastity belt.
There are numerous "debunkatory" articles on the net, with varying levels of sourcing, for instance: http://www.livescience.com/11338-medieval-torture-10-biggest-myths.html