Cahokia
Cahokia is a monument in the United States, near Collinsville, inscribed on the UNESCO World Heritage List. On site, verify your visit by GPS (within ~1000 m) to ink a full-color, dated stamp into your Inkpass travel passport.
Map
Get your passport stamped
Inkpass turns every verified visit — by GPS or photo — into a dated stamp in your digital travel passport. Prove your past, explore your present, plan your future. Coming soon on iPhone.
