Question: How large is the regional shopping mall across from 50 Penn Place?

Context paragraphs:
Sunrise Mall (Citrus Heights, California): Sunrise Mall is a single-level regional shopping mall located at the intersection of Sunrise Boulevard and Greenback Lane in Citrus Heights, California, United States in the Sacramento metropolitan area.  It is one of the area’s largest and most successful enclosed super regional shopping centers.  The mall is the centerpiece of the Sunrise MarketPlace shopping district in Citrus Heights, which provides the city with a hearty economy based on sales.  Sunrise Mall is accessible from I-80 or Highway 50 from most locations in the greater Sacramento area.

KBRU: KBRU is a commercial radio station located in Oklahoma City, Oklahoma, broadcasting to the Oklahoma City area on 94.7 FM.  KBRU airs a Mainstream rock format branded as "94.7 The Brew".  Owned by iHeartMedia, its transmitter is located in Northeast Oklahoma City, and studios are located at the 50 Penn Place building on the Northwest side.

KJYO: KJYO, known as "KJ103", is a Top 40 (CHR) radio station serving the Oklahoma City area and is owned by iHeartMedia, Inc. Its transmitter is located in Northeast Oklahoma City, and studios are located at the 50 Penn Place building on the Northwest side.

50 Penn Place: 50 Penn Place is an upscale mixed-use development in the inner Northwest part of Oklahoma City, Oklahoma.  The galleria-style shopping mall and tower is located at 1900 Northwest Expressway in the Penn Square trade area immediately at I-44 and Northwest Expressway, across from Penn Square Mall near the exclusive suburb of Nichols Hills.

Mellon Square: The square, bounded by Smithfield Street, William Penn Place, and Oliver and Sixth Avenues, is surrounded by prominent downtown buildings including the Oliver Building, 525 William Penn Place, Omni William Penn Hotel, and the Regional Enterprise Tower.  It has long been a popular lunchtime destination for downtown workers.  In addition, retail shops are housed underneath it, along the Smithfield Street side of the square.

KTOK: KTOK (1000 AM) is a radio station broadcasting a news talk information format.  Licensed to Oklahoma City, Oklahoma, United States, the station serves the Oklahoma City area.  Owned by iHeartMedia, Inc. and licensed as Clear Channel Broadcasting Licenses, the station features programming from ABC Radio, Premiere Radio Networks and Westwood One.  The station is also simulcast on KXXY's HD radio secondary channel.  The station began as KFXR in 1927, and was owned by the Exchange Avenue Baptist Church.  Its transmitter is located in Moore, Oklahoma, and studios are located at the 50 Penn Place building on the northwest side of Oklahoma City.

KXXY-FM: KXXY-FM (96.1 FM, "96.1 KXY") is a country music formatted radio station serving the Oklahoma City area and is owned by iHeartMedia, Inc..  KXY is also the flagship station of the Oklahoma City Barons hockey team.  Its transmitter is located in Northeast Oklahoma City, and studios are located at the 50 Penn Place building on the Northwest side.

KGHM (AM): KGHM (1340 AM) is a radio station located in Oklahoma City, Oklahoma.  It is among a cluster of stations in the market owned by iHeartMedia, Inc..  Its transmitter is located blocks from the Oklahoma State Capitol, and studios are located at the 50 Penn Place building on the Northwest side.

Penn Square Mall: Penn Square Mall is a two-story, 1063000 sqft upscale regional shopping mall with a 10-screen AMC Theatre in Oklahoma City, Oklahoma, United States.  It is located at the intersection of Pennsylvania Avenue and NW Expressway, near I-44.

KTST: KTST (101.9 FM, "101-9 The Twister") is a country music station serving the Oklahoma City area and is owned by iHeartMedia, Inc..  Its transmitter is located in Northeast Oklahoma City, Oklahoma, and studios are located at the 50 Penn Place building on the Northwest side.

Supporting paragraphs: 50 Penn Place Penn Square Mall
Answer: 1063000 sqft