* It's 12 noon and you're in Rome, but are you in the central part of Rome? If you are, chances are that you will hear the bang of the cannon shot being fired at this time every day on top of the Janiculum Hill. This is a tradition that goes back to January 1, 1847, when Pope Pius IX introduced it to ensure that all timepieces would be set on the same time.

* Ever heard of the "most beautiful hole in Rome"? On top of the Aventine Hill - one of the seven hills of Rome - there is a garden known as 'Giardino degli Aranci', or Orange Garden, with a fabulous view of the city. At sunset, when the entrance gate closes, you can peep through the keyhole and have a breathtaking view of a line of trees and, lit in the background, St. Peter's Dome.

* Learn how to always tell the truth! When touring Rome, one of the sights you can't miss is the Bocca della Verita, or Mouth of the Truth. Everybody knows the story that in antiquity if you put your hand in there and you had committed a crime, your hand would fall off. This, though, was no coincidence: judges standing behind the wall would signal a man to cut off or let go of your hand. And people normally are not told that this masterpiece of Roman art was in fact the top of a sewer manhole originally placed in the Roman Forum!

* Ever seen bottled water from Rome in the U.S.? We have, during a tour of the East Coast! And a thought struck us: will those people drinking that water ever realize that almost certainly that water came through aqueducts that were built over 2000 years ago by Roman engineers? This is absolutely true and you can rest assured that water is not only safe to drink, but also nice to taste: many homes and fountains in the city still use that water.

* The "bewitched" climbing slope. Ever been driving downhill along a road and suddenly found yourself backing up or at least coming to a stop? You can have this experience along a road near Ariccia, in the vicinity of Rome! Don't ask us why. All sorts of explanations have been given, but none really satisfactory. It's fun to watch, though, a soccer ball or a tennis ball rolling back along the road!

* How often do you think a phrase uttered against everybody's wishes really carried the day? Who knows, but there is one instance in the history of Rome when this was actually true. One day in 1586 workers were trying to set upright the obelisk at present standing in St. Peter's Square. To ensure all possible concentration for the 800 workers on the job, other people in the square had been told to be absolutely quiet, on pain of death. Noticing that some ropes were giving way, someone shouted WATER TO THE ROPES! The hemp then shrank and everything turned out ok. Instead of getting a death penalty the man was awarded a prize and bestowed a title.

* Piazza Navona is perhaps the square that Romans love most. According to one of the popular stories involving two famous Italian artists who worked there, Gian Lorenzo Bernini and Francesco Borromini were at loggerheads with each other and were anxious to show their feelings. So Bernini designed the fountains in the square in such a way that a statue representing the Nile seems to turn its back on the Church of St. Agnes built by Borromini and cover its eyes to avoid the sight of such a terrible-looking church.

* Conclaves are held in the Vatican City, Rome, for the election of each Pope. All cardinals attend the conclave because only the people actually there may be elected Pope. Cardinal Carol Wojtyla came to Rome after the death of Pope John Paul I and the morning of the opening of the conclave he was running late and risked being left out. In despair he thumbed a lift along the way. A bus driver returning to his depot noticed this strange priest looking for a lift and stopped to enquire. When Cardinal Wojtyla explained things to him, the bus driver simply said: ok, I'll take you there, you never know, we might miss a Pope! In fact Cardinal Wojtyla did become the new Pope!

* Aren't you proud of the fact that Americans have made that wonderful, handy invention known as fast-food? Ahm, maybe you'll be surprised to learn that that is not quite true. Romans had thought of it - and put it into practice - well over 2000 years ago. Their road network used to link Rome to the rest of its Empire and those roads were equipped with facilities that you would normally expect in a modern-day service station: gas refueling (horse changes), restrooms, diners, refreshment facilities and even take-away hot meals (they'd return the hot stone containers at the next service area).

* Have you flown into Rome or driven there? Do you realize that there used to be another way to get to Rome? In ancient times the Romans used to sail their ships up the Tiber, right into the city. This of course is an old story, but it could come about again if the project the mayor of Rome has in mind is approved. So next time you come to Rome you may be able to sail your way into the city.