Landmarks Preservation Commission

New-York Historical Society presents plans for $140m expansion, including a home for a new LGBTQ museum

Design envisages over 70,000 sq. ft of space for classrooms, collection study areas and the fledgling museum, as well as underground library storage

New York preservation group launches online mapping tool to champion former haunts of artists and activists

Organisation hopes the city will protect former home of Jackson Pollock and other buildings south of Union Square by designating a new historic district