THE FIRST "STONE"
'(<a href="http://www.j-archive.com/media/2007-03-02_J_05.jpg" target="_blank">Jeff Probst reports from Guatemala.</a>)  Mayan pyramids were characteristically constructed with <a href="http://www.j-archive.com/media/2007-03-02_J_05a.jpg" target="_blank">this</a> stone, named for the calcium oxide it produces when burned'
limestone