Maya文明のpyramidをめぐるHansen氏の苦闘が描かれる。 Expantion Readingの数字・カレンダーの話も難しいけど興味深い。 《Words》 archaeology：the study of ancient societies by examining what remains of their buildings, graves, tools etc tomb：a stone structure above or below the ground where a dead person is buried

Searching tombs in pyramid is very hard work. I admire them because they aren't content to give up easily.