The symbol at the top of this building is for the Chinese railway network. Huhhot is a major rail hub, with many trains going to Beijing, Baotao, the south, and even Mongolia proper. The "khanate local" (my term, not theirs) leaves from Huhhot, goes northeast to same the Mongolian border crossing as the Trans-Mongolian to Moscow, and cuts northeast to Ulan Bator, which means "Red Hero," in the Mongolian language, a legacy of Mongolia's communist revolution (though the Chinese like to think of it as the time Russia took Mongolia away) that remains to this day.
EAP China! Robert Klein.