Designed by Michael Arad, the memorial honors the victims of the 2015 mass shooting at the Mother Emanuel A.M.E. Church.

On an island in New York, Cornell Tech opens a high-tech campus that marries education and entrepreneurship.

A 26-story apartment building on the Cornell Tech campus achieves Passive House certification, making it the tallest and largest structure with this designation anywhere in the world.

Aficionados of the musical West Side Story will know the New York neighborhood Lincoln Square, once called San Juan Hill, as the backdrop for the clashes between the Jets and the Sharks. But in real life, this is the part of Manhattan’s West Side that was bulldozed in the 1960s to make way for the performing-arts complex Lincoln Center.