Midway City was the home of Carter Hall.
Midway City was renowned for its museum, one of the largest historical musea in the world. Carter Hall was a curator there. When Vixen and Hawkgirl went to visit Hall in the museum, they had to fight Shadow Thief, who had kidnapped John Stewart. Even though Hawkman came to their help, Shadow Thief managed to best them.
Background information Edit
In most of its comic incarnations, Midway City is a Chicago-style city, home of Hawkman and Hawkgirl.