El Rastro is a very typical market that you can enjoyin Madrid each Sunday morning. Its origin is in the XVth and XVIth centuries when junkmen, old clothes dealers and butchers and leather tanners around a new slaughterhouse began to meet and trade between the current La Latina and the Puerta de Toledo. Nowadays, a lot of street shops fill up Ribera de Curtidores Street and all the streets next to it.
You must be very careful because there are a lot of people walking and buying things that probably they are not going to use anytime but the flavour of the old Madrid is the essence of wasting your time in a Sunday morning. Indeed, my visit to Madrid has began walking by this special place and I have been able to find some mathematical objects waiting for some exclusive buyer:
I have tried to haggle their price but I still have not money to buy them!
Location: El Rastro (map)