This is the National Monument.

 The largest and most extensive dig site in the whole of Costa Rica.
  The village covers 49 acres and it thought to be originally home to 5000-7500 Indigenous people.
 It dates back to 1000 B.C.
The bigger the mound the more important you were in society.

Located near the base of Turrialba Volcano
Cartago Province
Costa Rica

February 2013