A massive plan to renovate New York City’s old and aging Penn Station is starting to be put into action, as President Donald Trump is considering a $7.5 billion redevelopment that would relocate one of the city’s most iconic landmarks, Madison Square Garden.

The proposal, presented by developers to Trump in private discussions, would involve moving Madison Square Garden off its current location above Penn Station, clearing the way for a full reconstruction of the busy station.

Penn Station, which serves roughly 600,000 passengers daily, is constantly being criticized for its cramped, underground layout. Planners say that removing the arena, which is currently built directly above the station, would allow for a far brighter, more spacious, and modern station, and can allow for fun reconstruction like restoring elements of the original grand 1910 design.

Under the plan, Madison Square Garden would be relocated nearby, just one block away along Seventh Avenue. Then the current site could be redeveloped into an open public space and be used for plazas and green areas, reshaping Midtown Manhattan.

However, the plan faces a major obstacle, Madison Square Garden’s owner, James Dolan, has repeatedly resisted efforts to move the arena, making any relocation very difficult without proper approvals.