A beautifully designed museum tracking the history of many Asian Civilizations. The exhibits are well put together and interesting, the museum is intuitively laid out, and best of all, it is air conditioned - a welcome treat from the hot Singapore air. As with Singapore, this museum is a great place to start a trip through Asia - throughout the rest of our trip we were recalling the exhibits and the information we learned, and applying it to other countries and areas.
One of Singapore's biggest museum is in Empress Place, nearby the old City Hall. It features relics of multiple civilizations, and multiple cultural backgrounds. The collections are massive -- if you really want to pay attention to each one, you'll probably spend the entire day looking at them.