When in: Rome

When in Rome, do as the Romans do. Sip cappucino at an outdoor café. Shop for the latest fashions--and dress like you're about to hit the catwalk any minute now. And, by all means, engage in public displays of affection anyplace, anytime, for any reason. It's all just part of being in Rome. And, in between those PDAs, don't miss:

• The Colosseum--Well, Russell Crowe's no longer there, but you'll still want to tour this symbol of ancient Rome. (Arrive early during peak summer months or you'll spend half your day in line!)

• The Forum--Adjacent to the Colosseum, these ruins make ancient Rome come to life. (Cat lovers, don't miss the furry felines that populate this ancient part of the city.)

• Spanish Steps--Stroll hand in hand down these historic steps and think of the famous writers such as Lord Byron, Balzac, Thackeray, and others who once followed these same steps. Nearby, don't miss Bernini's Fountain of the Barcaccia in the piazza.

• Vatican City--Regardless of your beliefs, Vatican City is a must. Stroll St. Peter's Square and the church itself, then marvel at Michelangelo's Pieta in the sanctuary as well as his Sistene Chapel.

• Trevi Fountain--You don't have to take a dip a la Three Coins in the Fountain but you definitely must throw a coin in. Stand with your back to the fountain and toss--it will ensure that you will return to Rome. What better investment can you make?

• Piazza Navona--Grab a seat at one of the sidewalk cafes and watch Rome go by. The Piazza is also known for its statues, especially Bernini's Fountain of the Four Rivers.

• The Pantheon--It's not huge, but this ancient building is definitely one of Rome's most impressive (and there's a lot of competition for that title.) Built around 120AD, a stop here is a must.

• Via Condotti--This is the shopping street of Rome, the best place to pick up an Armani suit or a Gucci bag. Or just window show and dream…