Thank you so very much for the tips on how to get around using the metro system. It is perfect! We got ripped off with taxi drivers, each charged a different fee from the same place to the same place. Not all are dishonest but we had 2 younger drivers that were, one of them dared to charge us $10 for a 5 minute ride. The older or more mature drivers were great, helpful and friendly, charged us a decent fee less than $5 from to take us to and from the very same spot. In addition, we took a taxi from about 15 minutes distance and he only charged us $4. Next time we go, it will be Metro all the way.