The Altoona Association of Model Railroaders will have Open Houses Friday nights December 6th and 13th from 7:30 to 10:30, and Saturday afternoons the 7th and 14th from 1 to 5.  They have multiple train layouts, including HO and N-scale.  They’ll have cookies and hot chocolate.  It’s FREE, but donations are appreciated.  It;s at 2930 South 10th Avenue in Altoona.  For more information, see their Facebook page