list some famous monuments of it's kind?
Takalik Abaj in Guatemala, San Lorenzo, La Venta are few among them
Olmec colossal heads
Seventeen confirmed examples are known. An additional monument, at Takalik Abaj in Guatemala, is a throne that may have been carved from a colossal head. 
olmec colossal heads were created using this method of sculpting UNANSWERABLE what is the civilizations associated with it? They were the first inhabitants of the Americas to construct monumental architecture, settle in towns and cities, and develop a sophisticated style of stone sculpture what character trait does the above reflect? All of the Olmec colossal heads depict mature men with flat noses and fleshy cheeks; the eyes tend to be slightly crossed
wiki:7864554
Olmec colossal heads [SEP] Known monuments
Seventeen confirmed examples are known. An additional monument, at Takalik Abaj in Guatemala, is a throne that may have been carved from a colossal head. This is the only known example outside of the Olmec heartland on the Gulf Coast of Mexico. Possible fragments of additional colossal heads have been recovered at San Lorenzo and at San Fernando in Tabasco. Crude colossal stone heads are also known in the Southern Maya area where they are associated with the potbelly style of sculpture. Although some arguments have been made that they are pre-Olmec, these latter monuments are generally believed to be influenced by the Olmec style of sculpture.