You could catch an event at Tacoma Dome, a stadium in South Tacoma. Why not take a stroll along the port and watch the sunset while you're here? If you think Tacoma Dome is cool, you also might like Cheney Stadium and Puget Sound Tennis Center, both located nearby.
You can spend time browsing the exhibits at LeMay Car Museum during your trip to Tacoma. Amble around this family-friendly area's waterfront or experience its great live music.