Yes, there are plenty of ATMs all around the world, but it is wise to check beforehand. With Visa and MasterCard, you can pinpoint ATM locations worldwide on their website.
Often it is a good idea to travel with an ATM card because you can withdraw foreign currencies at a better exchange rate, and also if you lose your card and report it promptly you will not experience the type of losses you would with cash. Be wary of fees your bank will charge you for each withdrawal – it may be wise to withdraw larger sums to minimize the frequency of transactions.