"Fig. 126. Uxmal. House of the Turtles. Ground plan." If correct, building is unusual in having doors on all 4 sides and in having a direct passage through front, interior, and back (debated) doorways.
Scanned from Eduard Seler, Die Ruinen von Uxmal, 1917 (fig. 126); print closely based on Selers on-site drawing.