Reporting for this episode of Chronicle was done as part of a Northeastern University study abroad program to Peru. Cusco, Peru, is considered the oldest living city in the Americas. No visit to Cusco ...

Crossing into Bolivia was seamless, and our new tour director, Hector, took us to Copacabana on the Bolivian side of Lake ...

The two long-forgotten fortified settlements, described as “extraordinarily rare”, have been compared to the Inca citadel of Machu Picchu because of their extremely high altitude and remoteness.

I, like most guests, spent one night here acclimatising to the altitude at Puqio’s sister property ... I’m told, tend to ...

The two long-forgotten fortified settlements, described as “extraordinarily rare”, have been compared to the Inca citadel of Machu Picchu because of their extremely high altitude and remoteness. Known ...

In the mountains of Uzbekistan, archaeologists aided by laser-based remote-sensing technology have identified two lost cities ...

The two cities are located in rugged terrain 2,000 to 2,200 meters above sea level (roughly comparable to Machu Picchu in Peru ... into more challenging high-altitude settings," he said.

Tugunbulak and Tashbulak are especially remarkable given their altitude, roughly comparable to the later Inca citadel of Machu Picchu in Peru. “The key finding of this study is the existence of ...