One of the most iconic road in USA The Overseas Highway, the southernmost leg of U.S. Highway 1 and sometimes called, "The Highway That Goes to Sea," is a modern wonder. The road, that follows a trail originally blazed in 1912 by Henry Flagler's Florida East Coast Railroad, stretches from Miami to Key West. Today, motorists can travel the highway in less than four hours from Miami. However, drivers should allow time to experience the natural beauty of the ever-changing scenery of the seas and wilderness bordering the roadway, and the magnificent sunrises and sunsets.