The Greco-Macedonians introduced a number of innovative artistic, sculptural and architectural forms into the vernacular of Indian religious and governmental representation, and was especially popularized and proliferated throughout the Maurya Empire from the west. A great example of this production was the gradual transformation of the iconic image of the Buddha (as well as Hindu saints) in which Greek aesthetics were adopted.

At that age I would suggest the Visionary Art Museum and the Aquarium. I mean, they are pretty closely located and easily walkable -- and can certainly consume most of a day.