I heard a rumor or comment that the Hacienda of San Mateo of Valparaiso, Zacatecas, Mexico is suppose to have 101 rooms! And no one knows where the 101st room is.

Here one of many pictures that people posted of Hacienda San Mateo that was the favorite Hacienda of Conde Don Fernando Campo y Cos:

http://oi40.tinypic.com/2ia4heo.jpg