Sam Wilson and the Avengers' floating headquarters team-up to create a new Captain America costume in Avengers #25.

The itsy bitsy spider climbed up the waterspout. Down came the rain, and washed the spider out. Out came the sun, and dried up all the rain. And the itsy bitsy spider climbed up the spout again.

What's showing at San Francisco Museums from April 23 to April 30. Galleries too. Plus loads of free public events.