<Tr> <Th> Founded </Th> <Td> c. 1450 </Td> </Tr> <Tr> <Th> Abandoned </Th> <Td> 1572 </Td> </Tr> <Tr> <Th> Cultures </Th> <Td> Inca civilization </Td> </Tr> <Tr> <Th_colspan="2"> UNESCO World Heritage Site </Th> </Tr>

What is at the top of machu picchu