Museums kids actually like
Only a few museums in this city are genuinely built for children, and the ones below hold attention for hours rather than minutes.
CosmoCaixa
The science museum with its flooded Amazonian forest, live demonstrations and planetarium is the undisputed champion from about age four up.
L'Aquàrium
The shark tank and the walk-through tunnel are the draw, and the smaller tanks and play zone round out a half day.
The wax museum
The Museu de Cera by the port is hokey in the best way, and short enough to finish before anyone melts down.