As part of the strong voodoo belief, there is a temple in Ouidah which is dedicated to pythons (yes, the snake). Believers - and tourists - come here to make sacrifice to the pythons in hope to have their wishes come true. The are ceremonies every third day at 2 pm, but you're also welcome to see the small temple at any other time. You will see some shrines, but the most interesting part is of course the pythons. The guide will probably show you one up close and let you hold it, in addition to a peek inside the snake pit. Though there is an entrance fee, along with a camera fee, the guide will most likely also ask you to make a donation to... eh, the snakes.