Black and white photograph of a forest landscape with several mountains looking north from Sayil.

Black and white photograph of trees on a hill with field grass and rocks in the foreground of the image.

Black and white photograph of a field of grass in front a forest.

Black and white photograph of a forest landscape with mountains in the background.

Black and white photograph of a mountain landscape behind foliage.

Black and white photograph of the ruins of a stone structure with multiple doors along the side of the structure. Carvings are visible in parts of the stone.

Black and white photograph of the ruins of a stone building. Five doorways are visible on this side of the structure with cloth hanging to form doors. A smaller structure is visible on top of the main structure, and carvings are visible on every area…

Black and white photograph of the ruins of a stone, two-story building with multiple doors in the stone structure. A dirt path leads up to the structure with smaller structures on either side of the path. The photo is taken looking through a…

Black and white photograph of landscape of the northwest taken from Adivino (Pyramid of the Magician) in Mexico. Part of the Adivino pyramid is visible in the image. Two stone walls are with carvings are visible.

Black and white photograph of a stone structure in a forest. A stone wall is visible with stone triangle formations repeating along the top of the wall. Another stone structure is visible in the distance.

Black and white photograph postcard of a stone structure in a forest. A stone wall is visible with stone triangle formations repeating along the top of the wall. The structure is viewed at an angle.

Black and white photograph postcard of a stone structure from above with three walls visible. Another stone structure is visible in the distance and is labeled "Ruin" on the photograph. Another label on the image reads "Aguada Tree."

Black and white photograph of the Labna ruins of a large stone building. Carvings are visible on some of the walls.

Black and white photograph of a forest from above, taken at Uxmal, Mexico. Field grass is visible in the foreground.

Black and white photograph of a forest from above.

Black and white photograph of a forest area from above with a large mound visible in the distance, taken at Uxmal, Mexico.

Black and white photograph of a forest area from above with a large mound, possibly a pyramid, visible in the distance, taken at Uxmal, Mexico.

Black and white photograph of seven people standing around a telescope on top of a curved stone roof. Two people are visible to the left of the curved portion of the roof next to a bell tower. A forest is visible in the background.

Black and white photograph of the corner of the rooftop of ruins. A person is visible in the bottom right corner of the image. A small wall is built on the edge of the building with three round arched holes. Bells are visible in the lower two arches.…

Black and white photograph of the view east from Uxmal Station Elena. A partially curved stone roof with pointed roof decorations is visible above a forest.

Black and white photograph of a forest taken from Adivino (Pyramid of the Magician).

Black and white photograph of a forest taken from Adivino (Pyramid of the Magician).

Black and white photograph of a forest area taken from Adivino (Pyramid of the Magician), with fields visible in the distance.

Black and white photograph taken from Adivino (Pyramid of the Magician) of a field with a fenced in dirt circle in the foreground. A dirt path is visible leading to the fenced in area.