. >> graham hancock is author of the book fingerprints of the gods. >> with the mayan calendar it is possible to tell exactly what the phase of a moon will be on a particular day 2,000 years from now or 2,000 years before now. >> the ancient maya had calendars that read on the cycle of the sun, the moon and the visible planet. >> why was the solstice important to maya? >> the solstice is very important because they kept the records of the change of the seasons. they can now know that the rainy season is going to begin and for the construction of the building they only use the great amount of labor of slave they don't have any tools just the hammer and chisel. >> flush toilets and soak baths there. there is an observe tory. it's a private space. all indication this was a living place for the king. the temple of inskrupgss where this king ruled for 69 years is buried deep beneath it in an elaborate tomb. >> this is the resting place of the beloved myiayan king who reigned here over 100 years. art, architecture and astronomy flourish. >> the way they go from the solstice it is turning o