Question: What is the address of the building located above City Hall Station in Philadelphia, Pennsylvania? 
Context: Susquehanna–Dauphin is a subway station on SEPTA's Broad Street Line in Philadelphia, Pennsylvania.  The station is located at the 2200 block of North Broad Street in North Philadelphia, between Susquehanna Avenue at the south end and Dauphin Street at the north end.  Four tracks travel through the station, however the station is only served by local trains, which travel on the outer two tracks.  Along with Cecil B. Moore Station, this stop provides access to Temple University, which is located one block south of Susquehanna Avenue.  Service began at the station, formerly known as Dauphin–Susquehanna, on September 1, 1928 as part of the original segment of the Broad Street Line, which ran from City Hall Station to Olney Station. Philadelphia City Hall, built in 1901 and located at 1 Penn Square, is the seat of government for the city of Philadelphia, Pennsylvania. City Hall is a PATCO train station located at North 5th Street and Market Street in Camden, New Jersey.  It is the westernmost station in New Jersey before the train crosses the Benjamin Franklin Bridge into Philadelphia.  The station was opened on June 7, 1936, along with 8th Street and Franklin Square in Philadelphia and Broadway in Camden, as part of Philadelphia Rapid Transit's Bridge Line service, later acquired by PATCO.  The City Hall station is among PATCO’s least utilized stops.  The station has corridors north to Cooper Street, with separate entrances on the north and south corners of Cooper and 5th Street and another extends to Arch Street.  Due to the low passenger levels at this station, both corridors are closed.  Two stairways are visible at the northeast and southwest corners of Market and 5th Street.  Only the southwest is in use for passenger access, as the northeast stairway is marked for emergency use only. City Hall is a SEPTA subway station in Philadelphia, Pennsylvania.  It serves the Broad Street Line and is located in Center City Philadelphia underneath Philadelphia City Hall.  It is the busiest station on the line, serving 57,000 passengers daily.  City Hall station is served by Local, Express, and Special "Sport Express" trains.  Entrances are located on both the east and west sides of City Hall as well as in the central courtyard. Suwon City Hall Station is a subway station of the Bundang Line, the commuter subway line of Korail, the national railway of South Korea.  The station was opened in November 2013, as part of the final extension of the Bundang Line.  As its name suggests, Suwon City Hall is located right next to the station. Seoul City Hall is a governmental building for the Seoul Metropolitan Government in South Korea, in charge of the administrative affairs of Seoul.  It is located in Taepyeongno, Jung-gu, at the heart of Seoul.  It is connected to City Hall Station (Seoul) on Seoul Subway Line 1, with access to Seoul Subway Line 2 from the same station.  In front of the current city hall is the old city hall building, now Seoul Metropolitan Library, and Seoul Plaza (Korean: 서울광장 ). City Hall Station is a station on Seoul Subway lines 1 (Blue Line) and 2 (Green Line).  As its name suggests, Seoul City Hall is located right next to the station.  Deoksugung, a historic palace of the Joseon dynasty, is on the other side of the boulevard named Taepyeongno. Hall Station is a small rural locale in Lincoln County, Colorado, United States on the northeast corner of the intersection of State Highway 94 (milepost 45) and County Road 11.  Hall Station is a 101 by 211 ft (30 by 64 m) grass/dirt area, suitable for parking, and fenced on three sides.  Despite the name, the nearest railroad is 39 miles (62 km) east and 52 miles (84 km) west.  Hall Station is located on Highway 94 two miles (3 km) south of the Elbert County line between the Highway 94 bridge crossings of Little Horse Creek (milepost 43) and Horse Creek (milepost 46).  The nearest U.S. Post Office is in Rush (ZIP Code 80833). Sun Yat-sen Memorial Hall Station () is a station on Line 2 of the Guangzhou Metro that started operations on 29December 2002.  It is located under Dongfeng Middle Road () and Lianxin Road () in the Yuexiu District of Guangzhou City, Guangdong Province, China.  The station is named for the Sun Yat Sen Memorial Hall, which was established in 1931 in memory of Dr. Sun Yat-Sen, the founder of the Republic of China.  The English name of the station is the same as that of Sun Yat-sen Memorial Hall Station in Taipei, Taiwan's Metro system. The Pontiac City Hall and Fire Station is a historic building located at 110 W. Howard St. in Pontiac, Illinois, which served as both Pontiac's city hall and fire station.  The building was constructed in 1900 to replace an 1883 building which also served as both a city hall and a fire station.  Architect John H. Barnes designed the building in the Romanesque Revival style.  Though built as a single building, the city hall and fire station are separated on the interior; a bell tower connects the two buildings.  The building housed both Pontiac's city government and fire protection services until 1986.
Answer: 1 Penn Square