The 438,000-square-foot office building is being developed at the site of a former surface parking lot in Center City. Chubb has taken its place on Philadelphia's skyline. The insurance giant's ...

Philadelphia's building boom marches on this year. Why it matters: Rising towers are changing the city's skyline and fueling investments into more neighborhoods. Zoom in: While most aren't slated ...

An earthquake centered between New York and Philadelphia shook skyscrapers and suburbs across the northeastern U.S. for several seconds Friday morning, causing no major damage but startling ...