deep inside the acropolis these earlier buildings have now been discovered. here, a team of archaeologists has tunneled its way to an ancient tomb. so, you got it dug away, you think ? yeah. all right, well, let's do it. it's pretty complete. a little bit of it stayed behind there, but not too bad. boy, it's a big piece of jade. feels like it's got an indentation on the bottom. it's probably an ear flare. along with the burial was a hoard of precious jade. in tombs like these, maya kings were often buried with special offerings to accompany them on their voyage to the world of the dead. archaeologist william fash. jades can tell us specifically about what he was wearing the day he went to the other world. this one in particular is a nice example of a human figure. these four jades with human figures were the central pieces of the jade collar that he wore when he was placed on the slabs in the center of the tomb. there are also pieces that represent ear flares or ear rings actually that the individual wore. the men wore earrings in maya society, too. and the w

over the years, the grand temples and palaces of the acropolis have been reconstructed.but for all this impressive research, one essential question long remained unanswered. who were the common men and women who lived here ? when and how did they disappear ? this looks great. now, this area is so intensively used... to find out, bill sanders and dave webster, archaeologists from penn state university, began a project in 1980 that would span a decade of work. sanders: before we srted the copan project, we knew a great deal about copan. and its history was very similar to that of many classic maya sites. there was a long period of population growth, of political evolution, peaking around 800 a.d., and then the dynastic sequence ends shortly afterwards. and within a short period, the valley seems to have been abandoned. what we didn't know was anything about the factors and the mechanisms and the processes that produced this peculiar population history. and what we decided to do was a series of excavations and surveys which would allow us to find out how big the population

from the acropolis in greece to the street graffiti in brazil, bocelli and norman rockwell. let's say you missed jackie kennedy's famous white house tour. now you can cruise by the famous picture of george washington with just a click. and remember the scene from "ferris buehler's day off"? google's art project let's you zoom in and get a better view than cameron ever did. >> look at this part. this is one of my favorite parts of the painting. when we do it over here, zoom in here, and just really quickly move to that exact same area, you start seeing the cracks and the brush -- >> despite how big the google art project is now, there are limits. this whole gallery is on the virtual tour, but right around the corner, a room full of picasso's that you won't see online. at moma, they hope putting part of the collection online spurs more people to visit. >> nothing's better than seeing an artwork in person. there's just something that happens to you when you're in the presence of a real work of art. it's visceral, emotional. >> reporter: even state of the art art is no substitut