In preparation for a two-day field trip to a 4,600-year-old city later this week, today we visited the Larco museum, well-known for its collection of pre-Columbian artifacts. Although everyone has heard of the Incas, in reality their empire only existed for about 100 years before the Spanish arrived; prior to the Incas were several thousands of years of other indigenous civilizations that came and went. We learned about these at the museum, with a helpful timeline of their contemporary cultures in Europe and Asia.