If you're the type of person who likes mountains, hills, and the sweet sound of the word topography, then you're bumming in Miami-Dade, where a decent-size speed bump could qualify as a hill. But fret not. Though God, nature, and plate tectonics have failed Miami, civil engineers have not. The first stretch of the Rickenbacker Causeway -- the roughly half-mile between the mainland and Virginia Key -- is where Miami goes vertical. On any day of the week, stud bike riders, triathletes, and (sometimes) Olympic speed skater Jennifer Rodriguez can be found huffing it to the apex, up and down this roughly 30-degree, quarter-mile hump. Although this may not be the Pyrenees, rest assured you will need to use your lower gears. Also once you've summited Mount Miami, the big payoff: The view of downtown -- just to the northwest -- is one of the city's best.