Wrapping this one up:

Atapuerca
Australian Fossil Mammal Sites
Chengjiang Fossil Site
Dinosaur Provincial Park
Dorset and East Devon Coast
Fossil Hominid Sites - For the Taung Skull, a specimen of the species Australopithecus africanus (first of an early ape-form species to be classified as hominid
Ischigualasto / Talampaya
Joggins Fossil Cliffs - covers the Coal Age and this a particulalry significant period for Man's later development
Lower Valley of the Awash - For the Lucy skeleton (popularization, US tour)
Lower Valley of the Omo
Messel Pit - for variety of fossilized creatures
Miguasha Park
Monte San Giorgio
Mount Carmel Caves
Ngorongoro - Home Erectus, Habilis and Sapiens + "tools"
Peking Man Site - Prime example of Homo erectus site (many individuals plus tools
Sangiran Early Man Site
Stevns Klint
Wadi Al-Hitan
Willandra Lakes - very early homo sapiens findings, including the world's oldest cremation site