Joe Dorish

The famous 7 Wonders of the World historically consisted of seven great ancient wonders including the Great Pyramid of Giza in Egypt, the Hanging Gardens of Babylon, the Colossus of Rhodes statue and the Lighthouse of Alexandria. Over the years other sites and places in the world have gained notoriety as being called the Eighth Wonder of the World.

In 2008, the Russian newspaper Izvestia got together with Russian broadcasting company Radio Mayak and the state owned Russia TV channel and conducted a poll looking for the seven wonders of Russia. The results of the competition produced the seven wonders of Russia which were announced in Moscow's Red Square in June of 2008.

Iguazu Falls, Victoria Falls and Niagara Falls are the three greatest waterfalls in the world today. All three of these waterfalls are visited by millions of visitors every year, and any world traveler worth their salt will visit all three great natural wonders.

Did you know there are beautiful waterfalls along the Nile River in Africa? The Nile River is the longest river in the world at 4,135 miles and along its two main tributaries the White Nile and the Blue Nile there are a number of powerful and beautiful waterfalls.

These are the 20 largest churches in the world by square footage. The list is churches only and mosques, synagogues and other houses of worship are not included on this list except for the Hagia Sophia, which was built as a church but also served as a mosque for many years.

These are the 10 tallest churches in the world today. Some churches such as Lincoln Cathedral in England and St. Olaf in Estonia were tall enough at one time to make this list, but both suffered damage which has lowered their heights.