Third Sundae at Barrington Hall.  Guests will be treated to a free ice cream sundae in the great kitchen of this historic home at the end of each tour.  Tours are at 1pm, 2pm, and 3pm.  Admission:  $8.  $6/ages 6-12.  Barrington Hall, 535 Barrington Drive, Roswell.  More info:  770-640-3855 or www.southerntrilogy.com.