Cairo transit time 19 hours. Can you leave the station?

You can leave the country in this case, but you need to apply for a visa on arrival.

Landing visa refers to the visa that you apply for and get directly at the visa window after arriving at the destination airport, and you don't need to make an appointment online or at the embassy in advance. The visa fee for arrival at Cairo Airport is USD 25, valid for 30 days, and valid passport, air ticket and proof of accommodation are required. After applying for the visa on arrival, you can leave the station to see the pyramids and other scenic spots, but you should pay attention to time and safety and return to the airport in time to prepare for the next flight.