Sam Houston Park, on the western edge of downtown between McKinney and Dallas/Allen Parkway, is home to the Houston Heritage Society and a collection of historic buildings and homes from around Houston.

Tranquility Park, bound by Rusk, Smith, Walker, and Bagby, uses open green spaces and a series of interconnected fountains to commemorate NASA's landing on the moon's Sea of Tranquility.

Market Square, between Travis, Milam, Preston, and Congress, preserves the block formerly covered by Houston's open air market which fronted the old City Hall.

Allen's Landing, on Buffalo Bayou at Smith and Preston, commemorates the landing site of the Allen Brothers, founders of the City of Houston.

Sesquicentennial Park, across Buffalo Bayou from Allen's Landing, contains a statue of George H.W. Bush, Houstonian and 41st President of United States.

Main Street Square, a pedestrian mall with a reflection pool and fountains on the MetroRail line between Lamar and Dallas.

Root Memorial Square, a one-block park across La Branch St from the Toyota Center.

Sisters of Charity Park, a quiet area in St. Joseph's Medical Center in the southeast corner of downtown.

Discovery Green, west of the George R. Brown Convention Center, is slated to be completed in January 2008