Willemstad (; ) is the
capital city of
Curaçao, an
island in the southern
Caribbean Sea that forms a
constituent country of the
Kingdom of the Netherlands. Formerly the capital of the
Netherlands Antilles prior to its
dissolution in 2010, it has an estimated population of 150,000. Willemstad is home to the
Curaçao synagogue, the oldest surviving synagogue in the Americas. The historic centre of the city consists of four quarters: the Punda and
Otrobanda, which are separated by the
Sint Anna Bay, an inlet that leads into the large natural harbour called the Schottegat, as well as the Scharloo and Pietermaai Smal quarters, which are across from each other on the smaller Waaigat harbour. The city centre, with its unique architecture and harbour entry, has been designated a
UNESCO World Heritage Site.