Fort Worth Museum of Science and Natural History
This has to be my favorite place to go with kids in Fort Worth. Rain or shine, hot or cold, the FW Museum is an awesome locale.
It has activities and interests in hands-on science for preschool kids to adults, including Kidspace (for younger children), the OMNI IMAX theater, and a planetarium.
Your admission also gets you access to the National Cowgirl Hall of Fame (across the street) which houses another area for young people to dress up and some wonderful art and history.
Sections are currently under construction, but various exhibits are available at the National Cowgirl Hall of Fame. The OMNI is scheduled to reopen to the public in Spring 2008 and the renovated building should be available in early 2009.
Website is www.fwmuseum.org