SCIENCE MUSEUM OF MINNESOTA

If you're tired of the county fairs and city festivals, the Science Museum is offering a special treat for visitors this weekend. All children get free admission with a paid adult through Monday. See the featured exhibit, "Maya: Hidden Worlds Revealed." Discover what archaeologists know about the ancient Maya through artifacts and hands-on activities. Other exhibits include "Future Earth," which explains global change, and "Math Moves," with hands-on activities. (9:30 a.m.-9:30 p.m. Fri.-Mon.$12-$21. 120 W. Kellogg Blvd., St. Paul. 651-221-9444. www.smm.org.)

FOLKDANCE fun

Looking for a snazzy new way to burn off all the fair food? The Tapestry Folkdance Center has a variety of dance lessons from around the globe. Accompanied by live and recorded music, participants can learn international folk dance, contra and English country, too. (7:30 p.m. Fri-Sat.; 7 p.m. Sun. $5-$8. Tapestry Folkdance Center, 3748 Minnehaha Av. S., Mpls. 612-722-2914. www.tapestryfolkdance.org.)

MELISSA WALKER