Carved into its craggy summit are massive steps, part of a major Inca shrine ... historians have located ruins of roughly a dozen royal estates built by at least six Inca kings.

On the morning of July 24, 1911, an enterprising lecturer-explorer from Yale University set off in a cold drizzle to investigate rumors of ancient Inca ruins in Peru. The explorer chopped his way ...

Clear skies mean hikers will have incredible views of the mountains and Inca ruins. May and June are the best months because the crowds are smaller on the trails than July through September.

Machu Picchu is a 15th-century Incan city that was abandoned by the Incas after the Spanish conquest. The ruins feature about ... Cusco, the nearest major city, is less than 50 miles southeast ...