Men's Fitness may say Dallas is the sixth-fattest city in the country, but you'd never know it by jogging on the Katy Trail. Many of the city's beautiful people get that way by hitting this 3.5-mile trail that runs from Airline Road near SMU in the north to American Airlines Center in the south. The completion of the soft-surface running trail that runs alongside the concrete will be a huge bonus, and night illumination will be even better, assuming the Friends of the Katy Trail can raise that last bit of funds (the government money ran out a long time ago), but even in its current state the wide and even concrete ribbon is still a pleasure to sweat on. At peak times the urge to clothesline the omnipresent skaters may be difficult to suppress, but if you have a flexible work schedule (read: trust fund), the Katy is a scenic, convenient way to shed some of Dallas' trademark flab.

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