“Tucked under the tawny skirts of formidable foothills, the beautiful Río Urubamba Valley, known as El Valle Sagrado (the Sacred Valley), is about 15km north of Cuzco as the condor flies, via a narrow road of hairpin turns. It’s worth exploring this peaceful, fetching corner of the Andes with attractive colonial towns and isolated weaving villages.” – The Lonely Planet
The Sacred Valley
Pisac Ruins and Pisac Market (and info if you want to stay the night)
I did not go, I felt after Machu Picchu and the other Sacred Valley ruins I was all ruined out. But it is a very popular place with lots to do. Some info from trusted sites:
There are many other towns and villages to see as well! Check out some of these guides that talk about the Sacred Valley as a whole as well as give some suggestions on other places not previously mentioned.