The Jade Museum (Museo del Jade and Cultura Precolombina Marco Fidel Tristan Castro) is an archaeological museum located in San Jose (Costa Rica), first in the premises of the INS (National Institute of Insurance) then, from 2014, in a modern building specially designed to accommodate it, facing the Plaza de la Democracia. Founded in 1977 by Fidel Tristán Castro, first president of INS, it houses the largest pre-Columbian jade collection in America. It includes adzes, ceremonial masks and decorative objects dating back to 500 BC. At 800 BC. AD, but also chorotega (volcanic stone mills), ceramics, pottery and gold ornaments. The jade came from Guatemala and neighboring regions.