Bolivian architectures are characterized by two different styles: Spanish style and Inca style. A magnificent example is to be seen at Tiahuanacu, just outside La Paz. You will witness remnants of a once important religious centre. In ancient times, 20.000 people lived here in an area of almost three sq.km. Although only a small part has been excavated, it is South-America’s largest pre-Inca ruin.