Grass/dirt run along Allen Pkwy and within a mile of most downtown hotels:

* Mileage Starts at Lamar & Bagby Streets near Sam Houston Park

* Run west toward Allen Pkwy and look for the trail, it runs along the northern side of the road

One of the largest urban parks in the U.S.:

* We start and finish this three mile route at the parking lot next to the tennis courts on the north end of the loop, but you can start wherever you like

A university 400-meter track within 4 miles of downtown Houston:

* Either by car or foot, just head straight down Main Street till you reach University, the track will be on your right

This modern, upscale, and sleek indoor cycling studio has two locations.  The downtown venue is at the corner of Rusk and Milam.

Define has two locations in the Houston area. The Tanglewood's outpost is conveniently located in a strip mall with easy parking.