All major cities have their iconic runs—Central Park in New York, the Lakefront Path in Chicago, the Charles River in Boston—but many of these come up lacking if you’re looking for elevation gain. Competitive runners are often in search of something a little more challenging. After all, hills are the cornerstone of a successful training program, and that training program can’t be interrupted by a business trip.

CLICK HERE FOR HILL SUGGESTIONS IN THE MAJOR U.S. CITIES