It was a Dutch possession for the longest time, so windmills, tulips and yadda yadda yadda. It also had a Royal Dutch Shell oil refinery that drove the economy until it closed in the 1980s. It was soon sold to Venezuelans, so that happy Curaçaoans could once again experience pollution, explosions and bad air.
Still, the most important thing from Curaçao is Curaçao. That is, the blue or sometimes orange liqueur made from the local lahara orange. There's nothing better than a mixed drink made with Curaçao to go along with blue food.