“ Another of the important ruins is the ‘Castillo,’ a pyramidal mound 200 feet square at the base, and rising 75 feet to a platform, the approach being by means of a grand staircase with two colossal serpents' heads in sculptured stone at the base. The Palace or Nunnery (Casa de las Monjas) is a rectangular mass more than 100 feet long, and somewhat less in width, with an L-shaped wing on the eastern side, 60 feet long. Resting on this artificial platform, which is over 30 feet high, is a rectangular structure 90 feet long, 18 feet wide, and 18 feet in height ”

“ The L-shaped wing is a specimen of the best Mayan architecture. Minor ruins are the Caracol or Round Tower, the Cluchanchob or Red House, and the Temples of the Tables, the Tigers, and the Cones. Consult Holmes, Archæological Studies in Ancient Cities of Mexico (Chicago, 1895) . ”