Millions of Greeks vote over important money deal
5 July 2015 Last updated at 12:31 BST
Imagine living in a country where it's really hard to get money from banks and cash machines.
That's happening in Greece right now and today there's a big vote to decide what could happen in the future.
Millions of Greeks are voting on whether to accept the terms of a deal, offered by a group of other countries, to give Greece more money to help their economy.
The result of the vote could have a big impact on many countries including the UK.