Oldowan tools in Kenya; Mexican burial mounds; early Medieval fortress in Spain; lavish spices in Danish royal shipwreck
2.9 million-year-old African site raises questions over who really made some of the earliest stone tools Alternate Link 1 Alternate Link 2
Ancient burial mounds in Mexico among region's most important finds in decades
Sprawling early Medieval stronghold discovered beneath Spanish forest
Lavish foods and spices survive five centuries submerged in royal shipwreck