Key West City, Florida USA. Travel Guide. Key West is the far frontier, edgier and more eccentric than the other keys, and also far more captivating. At its heart, this 7-sq-mile island feels like a beautiful tropical oasis, where the moonflowers bloom at night and the classical Caribbean homes are so sad and romantic it's hard not to sigh at them. While Key West has obvious allure, it's not without its contradictions. On one side of the road,...