Adobe, to be more precise. Built in the late 1840s, Ft. Leaton was the fortified home of Benjamin Leaton and for 40 years it served as a trading post along the old Chihuahua trail.  It has been restored and mostly reconstructed to give a glimpse into the life of those who lived here.  Tons of goods, both legal and contraband passed through here as it made its way across this rugged country.

A cool artifact (actually replica I guess) is a Spanish carreta or huge two wheel cart. They claim that a devise of this type would have been the first wheeled vehicle to enter the US.