Pupils from Pelton Primary School in County Durham are running their own "city" for the day.
They elect their own mayor, apply for jobs in the shops and bank, and decide rules for citizens.
The Enterprise City concept started in the USA and the children in Spennymoor are the first to do it in the UK.
More top news
Trainees work with life sized childbirth simulators
A major sea rescue mission sees a man saved at Hendon. It is thought he had been fishing from the promenade.
New Metro fares in 2016 will mean a rise in the cost of daysavers, and a reduction in single fares