The National Museum in San Jose can be found in a long, yellow building on a hill, with the appearance of a castle, except the two turrets are worked into the building at its center instead of rising above it. The physical impression is that it's the most important place in the city. Inside are historical exhibits and a courtyard full of wagons and cannonballs, I think, or similar artifacts; and there is a butterfly garden downstairs.
Here is their life cycle! "Ya soy mamá! "
They blended in with the flowers, as is their wont, and it was difficult to catch them holding still. Etymology suggests the original Anglo-Saxon butterflies must have been yellow, like the ones below.
Below is the Morpho, Costa Rica's most famous. I never saw it in the wild.