Railroad tycoon Henry Flagler laid pilings for the only roadway to Key West 100 years ago. In 1982 the old bridge was decommissioned and replaced by a new one just to its south. But you can still walk or bike on the original, more than 2 miles out to sea, watching pelicans above and sharks and dolphins below. You might want to hurry, because there’s talk of shutting down the old span for good (free). — Photo by Karen Bleier
En español | Leaping across rivers, canyons and seemingly endless seas, bridges can provide cheap — and dramatic — thrills. But a quick drive over a scenic bridge can be frustrating; you want to stop the car, lean over the railing and soak in the scenery. Happily, there are lots of must-see bridges that are as welcoming to pedestrians as they are to vehicles. What’s more, with few exceptions even toll bridges don’t generally charge for folks on foot. Here are six camera-ready crossings.