Heritage and Science Park, located between East Monroe, East Washington, North 5th and North 7th Streets in downtown Phoenix, Arizona includes Heritage Square – a historic site anchored by the Rosson House – the Arizona Science Center, and the building of the former Phoenix Museum of History.

Heritage Square sits on the last remaining residential block of the original site of the town of Phoenix.

In 1976, preservation and restoration of the historic homes and the addition of the Lath House began, and the park opened in 1980.

[2] The majority of Heritage Square was added to the National Register of Historic Places in 1985 under the name "Phoenix Townsite".

[1] In 1996-97 the Arizona Science Center and the Phoenix Museum of History moved next to the site of Heritage Square from their prior locations, and the expanded campus was given the name "Heritage and Science Park".