True or False: All of the sites in today's lesson are World Heritage Sites. The World HELP! Heritage Site designation is given out by the United Nations Educational, Scientific, and Cultural Organization (UNESCO) to places that have cultural, historical, scientific, or some other form of significance.
True
False
True or False: Machu Picchu was built with a special mortar that allows the rocks that make up the city to tremble and then settle back into their places.
True
False