Willemstadââ¬â¢s waterfront looks positively unreal, like a doll city plunked down into the Caribbean. The oldest section of Curaçaoââ¬â¢s capital dates back to 1634, and the commingling of Dutch architecture and a Caribbean palette has resulted in a riotous cityscape rivaling the townââ¬â¢s own Carnival for vibrancy.