Have you ever thought of traveling around the world visiting different cities, touring the great attractions of the world such as the British Museum on London, the Puerta del Sol of Madrid, the Colosseum in Rome, the Winter Palace in St. Petersburg, not to mention all the sites for you to see in Hong Kong, Sydney, New York City, Los Angeles and Chicago. You could easily spend a year traveling through just the cities listed here. Here are some of the highlights you won't want to miss in some of these great cities.

Rome ? There are enough sites and museums in Rome to take you weeks or even months. You won't want to miss St. Peter's Basilica, the beautiful fountains scattered throughout Rome, the Pantheon, the Sistine Chapel and the Piazza, just to mention a few.

After you see all those, there is still the Domus Aurea (the Golden House of Nero), the Roman Forum, and the Vatican. The Villa Borghese is for those who love nature and beautiful gardens. It is 148 acres of greenery with exotic birds, aviaries, museums and more.

London ? When you are finished touring Rome, a trip to London is a great place to enjoy spectacular gardens and palaces as well as shows and museums. No visit to London would be complete without seeing Buckingham Palace, the Tower of London, or the National Gallery and National Portrait Gallery.

If you are interested in armor, jewelry, and British history in general, you will definitely want to visit the Tower of London. Begun as a fort, turned into a prison, and finally transformed into a sort of museum which houses thousands of pieces of armor, some of the most beautiful jewelry on display anywhere including the 530-carat Star of Africa diamond, and much more.

Madrid ? Traveling from London you might stop over in Madrid for a few weeks. Here you can visit the famed Palacio Real which is second only to Versailles. It houses the Royal Library, the armory, and almost 3,000 rooms and 240 balconies. It was home to the royal families of Spain until 1931. Be sure to include the two hour tour in your visit.

Other sites in Madrid that you will not want to miss include the Museo Thyssen-Bornemisza which houses art worth over $1 billion, the Basilica de San Francisco El Grande, and Retiro Park.

New York City ? No visit to the United States would be complete without visiting New York City. There you will want to see the Empire State Building, the Statue of Liberty, the Bronx Zoo and much more.

If you are interested in big ships you can tour the air craft carrier Intrepid which has been made into a sea, air and space museum. That is something you really don't want to miss.

There is still Hong Kong, Sydney, Washington DC, Jerusalem, and many more cities to visit during your worldwide tour. So if you ever decide to visit major cities of the world, you can be sure that there is so much to see that you could easily spend a year or more and still not see everything these places have to offer the tourist.