The Archaeology Card is a tourist card that gives you free admission to certain attractions from Ancient Rome, as well as to the four museums that comprise the National Museum of Rome. The card is valid for 7 days.
Unlike the Rome Pass, this card does not include public transportation or any other discount.

The price of the Archaeology Card is €23 for adults. Young people from 18 to 25 years old and International Student Card holders can receive a reduced rate of €13.
The Archaeology Card is on sale in the Colosseum, the Baths of Caracalla and in the four museums that comprise the National Museum of Rome.
The card can be worth it for people who can buy it at a reduced price. If you want to visit the Colosseum and two other places from the list, this option could save you money.
If you cannot get the reduced rate, it is usually a much better option to buy the Roma Pass, where besides the discounts you also get transportation included in the price.