Baltimore–Washington Superconducting Maglev Project

The Baltimore–Washington Superconducting Maglev Project (SCMAGLEV) was a proposal to connect the United States cities of Baltimore, Maryland, and Washington, D.C., with a 40 miles (64 km) maglev train system between their respective central business districts. It was the first segment of the planned Washington-New York Northeast Maglev project.

Source: Wikipedia — Baltimore–Washington Superconducting Maglev Project (CC BY-SA 4.0)