Exploring The World By: Sunev Hi From Missouri Four Facts About The Gateway Arch are: The St. Louis Arch is the tallest national monument in the United States. On February 12, 1963 construction began on the Arch and it was completed on October 28, 1965. The cost to build the Arch was $13 million. Nine hundred tons of stainless steel was used to build the Arch and it weighs 17,246 tons. The Gateway Arch is located in St. Louis, Missouri and it is Man-Made. Ciao From Italy Vatican City is Located within the city of Rome in Italy and it is Man-Made 4 Facts About Vatican City are: The Vatican City is the smallest country in the world with the smallest population. The Vatican has its own Post office and issues its own stamps. The Vatican City issues its own passports. The Vatican City is a UNESCO World Heritage Site. Hello From Washington 4 Facts About The Space Needle are: When the Space Needle was built in 1962 it was the tallest building west of the Mississippi River. The center of gravity for the Space Needle is 5 feet above the ground. On a hot day the Space Needle expands about one inch. The entire Space Needle saucer does not rotate, only a 14foot ring next to the windows rotates on the SkyCity restaurant level. The Space Needle is located in Seattle, Washington and it is Man-Made. Thanks For Watching!