The Cave of Escoural
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.
One of Evora's restaurants is also famous throughout the country. Apparently O Fialho's excellent traditional dishes are reason enough to drive all the way from Lisbon for dinner.
Evora is less than 2 hours away from Lisbon (there are express buses departing from the Sete Rios terminal), so it is a possible daytrip from the capital. However, it makes an ideal base for touring the Alentejo region and an overnight stay is highly recommended, as the town is especially evocative when floodlit at night.