Koati is the second largest island on Lake Titicaca. Buildings decorated with ornaments were known from the designation "Ajlla Wasi" or as well The house of the elected virgins of the Sun, which was called "Inak Uyo".

Colossal building with three levels of agricultural terraces, which was built on the waterfront with an area of ​​55 meters long and 24 meters wide. The building itself was built of rough stone with the exception of one of the 35 rooms, which is lined with carved stones. The whole apartment complex had two floors and its front part is formed by scattered symbols and trapezoidal niches.

The island of Koati is about 2 boat hours from Copacabana.

Mysterious symbols and shapes in architecture can also be found in Bolivia at locations known as Puma Punku or Tiwanaku (Tihuanaco).