Preservation

The former Church of the Assumption has sat vacant for decades, and the building structure is considered unsafe by city regulators.

Mommy, the zoo’s longest resident, is the oldest-known first-time mom of her species in the world.

At a packed town hall, City Councilmember Jeffery Young proposed replacing the library with a mixed-use building. It didn’t go well.

The SS United States, a 1,000-foot vessel that shattered the trans-Atlantic speed record on its maiden voyage in 1952, arrived early Monday in Mobile, Ala.

Tugs began the work of moving the enormous ship down the Delaware River and into open water before noon Wednesday.

Three Delaware schools that played a key role in the fight against segregation have been added to the Brown v. Board of Education National Historical Park.

The city’s historical commission would have the final say on any modifications to the building’s Grand Court, home to the famed eagle and organ.

The district protects apartment buildings in Mount Airy and Germantown constructed during WWI and WWII.

The species has existed for millions of years, but the salamanders are threatened by poor water quality and populations have drastically declined.

Visitors are drawn to the building's polished marble, intricate carvings — and 273 antique clocks that were part of the original design.

A Jersey Shore environmental group says damage from decades of toxic waste dumping at one of America's most notorious pollution sites caused $1 billion worth of damages.

YouthBuild Philadelphia Charter School is breathing new life into an old PECO building.

A bill to be discussed Thursday in the New Jersey Legislature would require all such materials used in the state to be recyclable or compostable by 2034.

The program funds habitat restoration and conservation initiatives throughout the Delaware River watershed.

The state will cancel $12 million worth of fines it levied against the city for conducting unauthorized and potentially harmful beach repair work.