We offer a great Groupon offer to visit Cahokia Mounds! There are two offers; one is for 2 iPod tours plus a souvenir guide book and tote for $10, and the other is for 4 iPod tours plus souvenir guide book and tote for $13. These offers are transferable, and we will honor them after the expiration date. We have sold over 1300 of these offers and have a 94% positive feedback rating on the offer. Simply go to Groupon.com and search for ‘Cahokia Mounds’ to get yours! It’s a great way to experience the site and includes outdoor audio tours to augment the Interpretive Center Gallery.