Question: Where is the end of Pennsylvania Route 3 located?

Context paragraphs:
Philadelphia City Hall: Philadelphia City Hall, built in 1901 and located at 1 Penn Square, is the seat of government for the city of Philadelphia, Pennsylvania.

Pennsylvania Route 50: Pennsylvania Route 50 (PA 50) is a 32.7 mi state highway located in western Pennsylvania.  The western terminus of the route is at Pennsylvania Route 844 in the Independence Township community of Independence less than a mile from the West Virginia state line.  The eastern terminus is at Pennsylvania Route 60 in Crafton Heights.  Part of its routing used to be Pennsylvania Route 28, which now terminates in the Pittsburgh neighborhood of Crafton Heights.

Pennsylvania Route 550: Pennsylvania Route 550 (PA 550) is a 36 mile (58 km) long state highway in Pennsylvania.  The southern terminus of the route is at Pennsylvania Route 45 Truck and Pennsylvania Route 453 east of Tyrone.  The northern terminus is at Pennsylvania Route 64 in Zion.

Pennsylvania Route 434: Pennsylvania Route 434 (designated by the Pennsylvania Department of Transportation as SR 0434) is a 12.47 mi state highway located in northeast Pennsylvania.  The western terminus of the route is at Pennsylvania Route 739 in the Blooming Grove Township community of Lords Valley.  The eastern terminus of the route is at the New York-Pennsylvania border in Shohola Township, where PA 434 crosses the Delaware River and enters New York, becoming New York State Route 55 at an intersection with New York State Route 97 in the town of Highland.  State Route 434 used to be part of Pennsylvania Route 37 and Pennsylvania Route 137.

Pennsylvania Route 3: Pennsylvania Route 3 (PA 3) is a 24.3 mi state highway located in the southeastern portion of Pennsylvania.  The route connects U.S. Route 322 Business (US 322 Bus.)  in West Chester with PA 611 in Philadelphia.  The route begins in downtown West Chester and heads east out of town as a one-way pair of streets.  Between West Chester and Upper Darby Township, PA 3 follows a four-lane divided highway known as West Chester Pike through suburban areas.  Along this stretch, the route passes through Edgmont, Newtown Square, Broomall, and Havertown.  The route has an interchange with Interstate 476 (I-476) between Broomall and Havertown.  Upon reaching Upper Darby, PA 3 heads into Philadelphia along Market Street.  In Philadelphia, the route follows multiple one-way pairs, running along Chestnut Street and Walnut Street in West Philadelphia before heading into Center City Philadelphia along Market Street and John F. Kennedy Boulevard and ending at Philadelphia City Hall.

Pennsylvania Route 36: Pennsylvania Route 36 (PA 36) is a 151.12 mi long state highway located in the U.S. state of Pennsylvania.  The southern terminus is at Pennsylvania Route 26 near the Hopewell Township community of Yellow Creek.  The northern terminus is at Pennsylvania Route 27 and Pennsylvania Route 227 in Pleasantville.

Pennsylvania Route 201: Pennsylvania Route 201 (designated by the Pennsylvania Department of Transportation as State Route 201, abbreviated PA 201) is a 25 mi south-north state highway located in Southwestern Pennsylvania in the counties of Fayette and Westmoreland.  The southern terminus is at U.S. Route 119/PA 711 in Connellsville.  The highway heads northwest and meets up with Pennsylvania Route 51 twice at two separate locations and Interstate 70 in Rostraver Township.  The northern terminus is at Pennsylvania Route 136 in Rostraver Township.

Pennsylvania Route 51: Pennsylvania Route 51 (PA 51) is a major state highway in Western Pennsylvania.  It runs for 89 mi from Uniontown to the Ohio state line near Darlington, where it connects with Ohio State Route 14.  Route 51 is the termination point for Pennsylvania Route 43, Pennsylvania Route 48 and Pennsylvania Route 88.  Century III Mall is located on this road in West Mifflin.  The Route is a major connection from Uniontown and the rest of Fayette County to Pittsburgh.

Pennsylvania Route 837: Pennsylvania Route 837 (PA 837) is a state route located in western Pennsylvania.  The southern terminus of the route is at Pennsylvania Route 88 in the Carroll Township hamlet of Wickerham Manor.  The northern terminus is at U.S. Route 19 and Pennsylvania Route 51 in downtown Pittsburgh at the junction of the Ohio, Allegheny and Monongahela rivers.  The highway parallels the Monongahela River for all of its route with the exceptions of its extreme north and south ends.  Popular amusement park Kennywood is located along this route.

Pennsylvania Route 89: Pennsylvania Route 89 (PA 89) is a 50 mi north–south state highway located in northwestern Pennsylvania.  The southern terminus of the route is at Pennsylvania Route 8 and Pennsylvania Route 27 in Titusville.  The northern terminus is at Pennsylvania Route 5 north of North East.

Supporting paragraphs: Pennsylvania Route 3 Philadelphia City Hall
Answer: 1 Penn Square