The Cromlech of Almendres dating from somewhere between 4000 and 2000 B.C has been called "the Portuguese Stonehenge." It is the most important megalithic group in the Iberian Peninsula, consisting of a huge oval of almost one hundred rounded granite monoliths, some engraved with symbolic markings, assumed to have been used for cult purposes. They have their origins in a culture that flourished in the Iberian Peninsula before spreading north as far as Brittany and Denmark.

A couple of kilometers east is the Cave of Escoural, a cave adorned with charcoal drawings of horses and other animals, the work of Cro-Magnon artists some 15,000 years ago. There are free tours organized on the site.
For more information about these sites, how to get to them, or to book tours, visit the Evora Tourism Office.