Black and white lantern slide of Audie Merrill standing next to a sign reading "Tropico de Cancer" along a roadside in Mexico.

Black and white lantern slide view down Saltillo Falls, looking east.

Black and white lantern slide of the excavated terrace of the Cholula Pyramid site.

Black and white lantern (dark) slide of Mexican landscape with the volcanoes Popocatepetl and Itzaccihuatl in the distance.

Black and white lantern slide of Mexican landscape with the volcanoes Popocatepetl and Itzaccihuatl in the distance, looking southwest.

Black and white lantern slide of the Cholula Pyramid site, looking south.

Black and white lantern slide of the Cholula Pyramid site, with a 132km marker next to the road side.

Black and white lantern slide of the unexcavated site of the Cholula Pyramid, with the Nuestra Senora de los Remedios Church in the background.

Black and white lantern slide of the steps of the Cuicuilco Pyramid taken from the base.

Black and white lantern slide of the stepped sides of the Cuicuilco Pyramid taken from the side.

Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.

Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.