The University of Tarapacá's archaeological museum, twelve kilometres up the Azapa valley, holds the largest collection of Chinchorro mummies in the world. The Chinchorro were a fishing people who lived along this coast from about 7,000 to 1,500 BC; they were the first culture on earth known to mummify their dead, doing so two millennia before the Egyptians.
The mummies are extraordinarily preserved by the desert climate — wrapped figures with painted clay masks, child-sized bundles, hair still attached. The museum also holds Tiwanaku-period ceramics, woven baskets, and the textiles for which the Atacama is famous. The site sits among olive groves; allow a half day with the bus and a leisurely lunch in Azapa village afterwards.