A huge train station with an integrated metro station. You can use it to take a high-speed train ticket to Xi'an and visit the "Terracotta Army". That's what I did.
They do not speak English, there is nowhere to sit, there are huge queues for tickets, they accept Union Pay cards and cash. Do not check into a hotel at the train station, it is not at the train station you are being taken to the devil knows where to a smoky hotel with battered views with glass walls in the toilet.