To Tiahuanaco
The Tiahuanaco crossing is a full-day excursion managed by a third party which will take you across the Bolivian border to the famous Sun Gate.
Considered the cradle of all South American civilizations, the Tiahuanaco culture showcases pre-Incan edifices dating as far back as 1580 AD. After visiting the citadel, continue on to the local museum which hosts ancient objects as well as original tools from the pre-Incan cultures that once inhabited the area. During this excursion you'll enjoy lunch in neighbouring Bolivia.