New York - Visitors from around the world are drawn to New York's High Line, the elevated park built on defunct railroad tracks that have been turned into an oasis of flowers, grasses and trees.
Private planners are now looking deep under Manhattan to create what is billed as the world's first underground park - the Lowline.
The project would be set in a 116-year-old abandoned trolley terminal below the Lower East Side. Once filled with struggling immigrants, the neighbourhood is now a hip location with bars, boutiques and renovated apartments in old tenement buildings.
Street-level solar collectors would be used to filter sunshine about 20 feet (six meters) down to bedrock.
The team developing the Lowline hopes to start construction in five years. It'll cost about $60-million. - Sapa-AP