Photograph of a damaged building in Saucillo, Chihuahua in Mexico. Three men dressed in hats, long-sleeved shirts, and pants stand on and around a cart set atop a railroad. The building sits beyond the men and has multiple circles containing words marked on its outer walls. Blue handwriting occupies the back of the photograph.

Photograph of a man standing outside a building in Chihuahua, Mexico. The man carries a large object in one hand and is dressed in a hat, long-sleeved shirt, and overalls. The building behind the man has a row of arched openings along its side and faces a set of train tracks. Blue handwritten text, including the words "Seccion de Meza," occupy the back of the photograph.

Photograph of men standing along train tracks in the Chihuahua division of Mexico. The men are wearing hats, long-sleeved shirts, and pants or overalls and stand in front of a fence or atop a cart placed on the train tracks. Behind the men is a long brick building with archways along its side and trees planted nearby. Blue handwriting, including the words "Seccion de la Cruz," occupies the back of the photograph.

Photograph of five men standing on train tracks next to a building labeled the "Santa Rosalia." One man stands on a cart sitting on the tracks while another man sits on a curb and the other three men stand. In the background, a man leans out of one of the Santa Rosalia's windows to talk to a man standing outside. Blue handwriting occupies the back of the photo.

Photograph of the side of a train bridge in Chihuahua, Mexico. The bridge rises above sparse vegetation and extends from the right side of the image towards the left, disappearing into the distance. The text "Puente Ortiz Mayo 1929" and "Div Chihuahua Nacionales" are handwritten on the back of the photo, in blue ink.

Photograph of three men standing in front of a burned bridge in the Chihuahua division of Mexico. The men wear hats, long-sleeved shirts, and overalls and face towards the viewer. In the background, a railroad runs parallel to the burnt bridge, which two men with a cart are positioned on top of. Blue handwriting occupies the back of the photo.

Photograph of the Avenue of the Dead leading to the Pyramid of the Moon at Teotihuacan. A group of people stands on the path, which passes by a row of short stone structures. One individual stands on a road to the right of the avenue.

Photograph of a bas-relief of jaguars and eagles at the Temple Tlahuizcalpantecuhtli, or Pyramid B, at the Tula archaeological site. The sculpture lines the side of a cobblestone wall, above which are additional walls.

Photograph of a busy street next to one of the Statues of Pegasus. The statue sits atop a plinth placed on a walkway and looks out over the crowded multi-lane road. Multiple vehicles drive around a corner, moving away from a line of buses parked alongside large buildings.

Photograph of El Caracol, in Chichen Itza. A large tower sits atop a wide platform lined by short walls and is accessed by a set of stairs leading up the two smaller platforms in front of the structure. A field of grassy occupied by trees surrounds the ruins.

Photograph of a carved, upside-down male figure above the Temple of the Descending God's entrance. The Mayan ruin is made of stone bricks and is covered by small patches of vegetation.

Photograph of an upright stone with carvings at the Monte Alban ruins. The carved stone sits in front of bushes that grow next to a large stone structure.

Photograph of carvings on the nunnery annex at Chichen Itza. Foliage grows across and atop the carved stone wall.

Photograph of El Castillo, at the Chichen Itza Mayan ruins. The step-pyramid sits on a grassy field, in front of a line of trees.

Photograph of the Cenote Xtoloc, in the Chichen Itza Mayan ruins. Plants grow across the walls of the cenote and along its top edge.

Photograph of the central altar at the Plaza of the Moon, at Teotihuacan. A short platform accessed by a set of stairs sit in front of a massive pyramid with stairs leading up its center.

Photograph of the Chac Mool statue in the Temple of Warriors, at Chichen Itza. The sculpted figure reclines atop a stone walkway that's flanked by sculptures of animal heads. Rows of stone columns decorated by carved imagery sit across the area behind the Chac Mool.

Photograph of a column in a structure at the Monte Alban ruins. The column sits between two cobblestone walls lined by vegetation. In the distance, a crowd of people stand near larger stone structures on a field.

Photograph of Mayan ruins at the Temple of the Warriors in Chichen Itza. A column adorned by sculpted imagery is surrounded by small rocks and sits on a pale platform, near a row of columns. Trees grow in the background beyond the platform.

Photograph of columns at the Temple of Warriors in Chichen Itza. Rows of rectangular columns extend out across a platform towards a small sculpture.

Photograph of a crowd standing between and near short stone walls, at the Mone Alban ruins. The ruins sit on a stretch of elevated land, which overlooks a vegetated landscape lined by mountains.

Photograph of a damaged sculpture at the Chichen Itza Mayan ruins. A sculpted animal head sits at the feet of a headless statue. Yellow and green vegetation surrounds the sculpture.

Photograph of a distant view of a portion of the Tulum ruins. A sandy path leads between plants growing beside rocks and the vegetated cliffs the ruins sit atop.

Photograph of a distant view of El Castillo at the Tulum ruins. The ruins sit atop a line of vegetated, rocky cliffs that rise above the edge of an ocean.