Walking down the streets of Buenos Aires can feel like you’re in a European City. This place was founded in the 1500s and colonized by Spaniards. Spanish architecture was built to last, and made of stone and brick. That’s one of the big differences between Spanish colonies and British colonies. The British built with wood, so a lot of their buildings haven’t survived the years. But in places like Argentina, Peru, and Mexico, they still have entire city blocks with buildings that are hundreds of years old.