St. Kitts has evolved over the centuries from a booming sugar colony into an ecotourist mecca, thanks largely to dense tropical rain forests. Laid out in a simple grid, downtown Basseterre is a quick walk from the pier and easily explored on foot. It remains a quintessential colonial port town, from its domed Treasury Building on the waterfront to its Victorian and Georgian architecture and handsome white homes with their darling toothpick balconies.