Huaca Huallamarca seems out of place in the upscale San Isidro—apartments, hotels, and office buildings rise around the ancient mud-brick pyramid. The pyramid was made by the Lima culture sometime between A.D. 200–700, predating the Incas. It was built with adobe bricks and assembled into platforms. It’s thought that the pyramid was used as a place of worship.

Visitors can climb to the top of the pyramid and get views of the surrounding neighborhood. There’s also a small museum with exhibits on objects – including a mummy – that were found onsite.