Overcast and 60 F at Pittsburgh - Allegheny County Airport, PA
Winds are Southeast at 6.9 MPH (6 KT). The pressure is 1010.5 mb and the humidity is 62%.The wind chill is 59. Last Updated on Apr 18 2019, 3:53 am EDT. More...

Construction of St. Peter's Basilica Begins (1506)
With a capacity of over 60,000 people, St. Peter's Basilica is the one of the world's largest churches as well as one of the world's holiest Catholic sites. Begun by Pope Julius II in 1506 and completed more than a century later, it was built to replace Old St. Peter's, erected by Constantine over Peter's traditional burial site. Michelangelo and Bernini were among its many architects, and a number of their masterpieces adorn its interior. Why is St. Peter's not considered a cathedral? Discuss
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