Tacoma is a small city of about 220,000 residents with a vibrant downtown. It is famous for its spectacular Museum of Glass, and infamous for the tragic (but mathematically fascinating) collapse of the Tacoma Narrows Bridge in 1940.
The region enjoys a mild climate, even during the summer, with pleasantly warm days (highs around 77F / 25C) and cool evenings (lows around 56F / 13C) in July and August.
Read more about Tacoma at the University of Puget Sound's website.