Question: PlazAmericas was the third mall to be built in Houston, after Gulfgate Mall and a large shopping center that is located in what part of Houston, Texas?

Context paragraphs:
Great Mall of Las Vegas: The Great Mall of Las Vegas was a proposed $750M shopping mall in northwestern Las Vegas, Nevada, USA, shelved in 2009.  The project was promoted by Triple Five Nevada, an affiliate of the Triple Five Group, the developers of other very large mall projects such as the Mall of America and West Edmonton Mall.  The mall was to contain a large shopping center, condominiums, and office space.

Sawgrass Mills: Sawgrass Mills is an outlet shopping mall operated by the Simon Property Group, in Sunrise, Florida, a city in Broward County.  With 2383906 sqft of retail selling space, it is the tenth largest mall in the United States, the largest single story and outlet mall in the U.S., the largest shopping mall in Broward County, the second largest mall in Florida and Miami Metropolitan Area, and the third largest shopping mall in the southeastern United States.  The mall opened in 1990 as the third mall developed by the now-defunct Mills Corporation (now part of Simon Property Group), and has been expanded four times since then, most recently in 2013.  There are over 300 retail outlets and name brand discounters, with anchors including Off 5th Saks Fifth Avenue, and Super Target.

Cinderella City: Cinderella City Mall was a large shopping center located in Englewood, Colorado, United States.  The mall was officially opened for business on March 7, 1968 and was demolished in 1999.  It once held the distinction of being the largest covered shopping center west of the Mississippi River.

Broadway Mall: Broadway Commons, formerly known as Broadway Mall, is a large shopping mall located in Hicksville, New York, United States.  Originally an open-air shopping center called the Mid-Island Shopping Plaza, Broadway Mall is currently a regional enclosed shopping center comprising more than 85 stores, as well as a food court and movie theater.  Anchor stores at the mall are IKEA, Macy's, and Target.

Ashley Landing: Ashley Landing (originally opened as Ashley Plaza and later known as Ashley Plaza Mall), built in 1970, was the first indoor shopping mall built in the West Ashley area of Charleston, South Carolina.  The center is located at 1401 Sam Rittenberg Boulevard (S.C. Highway 7) at the fork of Old Towne Road (S.C. Highway 171).  It was built as a joint venture of shopping center developers the LeFrak Organization of New York City and The Cordish Company of Baltimore, Maryland under the name Ashley Plaza Mall Associates.  Ashley Plaza Mall was originally constructed in the late 1960s as a strip shopping center featuring a J.M. Fields Department Stores joined to a Pantry Pride supermarket.  In 1970 the locally owned Condon's Department Store was built adjacent to Pantry Pride as a freestanding building.  The center was originally known as "Ashley Plaza" and had a large red and white neon pylon "Ashley Plaza" sign in the center of the parking lot that remained until 1989 when it was destroyed by Hurricane Hugo.

Bulgaria Mall: Bulgaria Mall was officially opened on 1 December 2012 and is the first shopping center in Sofia and Bulgaria which will be positioned as an upper scale mall, focusing on the proper combination of medium to premium international brands with the highest quality Bulgarian retailers.  Owners of Bulgaria mall are Myles Summerfield and Nikola Yanakiev.  More specifically, the shopping center is positioned at the intersection of two of the most significant Sofia's boulevards – Bulgaria boulevard and Todor Kableshkov boulevard.  Bulgaria Mall has an exceptional location, close to the downtown (less than a 10 min.  drive), the Ring Road (app.  2 min.  drive) and some of the most affluent residential quarters of Sofia.  The mall will be developed as part of a mixed-use retail and office project with approximately 130,000 m² of total built-up area (33,000 m² for the commercial area).  The shopping center will include four underground (parking and a hypermarket of approx. 5,600 m²) and four above ground levels with retail and entertainment.  The parking will provide more than 1,100 lots with very convenient entrances to each underground parking deck.  The office part, which will consist of an office high-rise tower and an office building, will exceed 25,000 m² of lettable area.

Meyerland Plaza: Meyerland Plaza is a large shopping center located in southwest Houston, Texas, United States.

Galeria Kazimierz: Galeria Kazimierz is a large shopping center located in the Grzegórzki borough of Kraków.  The name derives from the neighbouring district of Kazimierz.  Phase 1 opened in 2004.  The mall has around 38,150 m of floor space, complete with a wide variety of eateries and large shops such as Zara, Puma, Quiksilver, H&M and Alma Market.  In all there is more than 130 retail units present within the mall along with a ten screen cinema.  In 2007 construction began on a 6 storey office space which is part of the shopping mall.

PlazAmericas: PlazAmericas, formerly known as Sharpstown Mall and earlier Sharpstown Center, is a shopping mall located in the Sharpstown development in Greater Sharpstown, Houston, Texas.  The mall is located on the northwest corner of Interstate 69/U.S. Route 59 and Bellaire Boulevard.  This is the third mall to be built in Houston after Gulfgate Mall opened in 1956 and Meyerland Plaza in 1957, but the first fully air-conditioned mall in Houston.  The area includes the Jewelry Exchange Center, a ten story building.  After the mall was renamed PlazAmericas, it took a Latin American theme and catered to Hispanics.

Gulfgate Mall: Gulfgate Mall, also known as Gulfgate Shopping City or Gulfgate Center, is a shopping center located in the East End, Houston, Texas, United States.  The mall is located northwest of the intersection of the Gulf Freeway and Interstate 610.  This is not an indoor shopping mall, it is a center of individual retail stores.

Supporting paragraphs: PlazAmericas Meyerland Plaza
Answer: southwest