Reporters' notebook: Inside a Poland refugee hub

A look inside a refugee hub in Poland, from ABC News.

WARSAW -- The Warsaw Expo in Poland is currently home to roughly 8,000 refugees, mostly women and children.

The space is massive. Normally home to trade shows, it's now lined with cots. There are medical centers and play areas for kids, too.

What makes this shelter different from others, besides the size, is that there's a makeshift bus station inside.

Multiple buses shuttle refugees to different countries throughout the European Union every single day. There are screens, like you'd find at a station, with schedules and destinations. Here, the tickets are free.