3. Great Pyramid of Giza Oldest and Tallest Pyramid ever build. Construction Period estimated 14 to 20-year period. The pyramid remained the tallest man-made structure in the world for over 3,800 years.
5. Golden Gate Bridge Suspension bridge spanning the Golden Gate, the opening of the San Francisco Bay into the Pacific Ocean. Golden Gate Bridge was the longest suspension bridge span in the world when it was completed in 1937.
7. Great Wall Of China Built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic groups. Construction began around the 8th century BC. The Great Wall stretches from Shanhaiguan in the east, to Lop Nur in the west, along an arc that roughly delineates the southern edge of Inner Mongolia.
9. Colosseum in Rome Structure is an elliptical amphitheatre in the center of the city of Rome, Italy. Built by the Roman Empire, it was completed in 80 AD Capable of seating 50,000 spectators. The Colosseum was used for gladiatorial contests and public events such as mock sea battles, animal hunts, executions Iconic symbol of Imperial Rome and is considered one of the empires greatest works Still stands almost 2000 years after its construction despite damage by earthquakes and stone-robbers
11. Longaberger Basket The Longaberger corporate headquarters is located in Newark, Ohio The handles of the basket weigh about 150 tons and have the ability to be heated to prevent ice Example of novelty architecture
12. Petronas Towers Located in Kuala Lumpur, Malaysia Tallest twin buildings in the world Constructed cheaper using high-strength reinforced concrete than using steel
14. Constructed for the 2008 Olympics Made with 110,000 tons of steel, which was all The stadium consists of two independent structures, which stand National Stadium Beijing, China
15. CN Tower Communications and Observation Tower in Toronto, Canada 1976 – became the world’s tallest free-standing structure Stands 1,815 ft. Declared one of the seven wonders of the modern world in 1995
16. Empire State Building Located in New York, New York Stood as world’s tallest building for more than 40 years Ranked number one for American architecture Was the first building to exceed 100 stories and is 1250 feet tall
18. Willis Tower (Sears Tower) Built in Chicago, IL Was the tallest skyscraper in the world from 1973-1998, and still holds the title as the tallest free-standing structure in the U.S. Its observation deck is one of the main tourist attractions in Chicago Stands at 1730 feet
19. BurjKhalifa Located in Dubai, United Arab Emirates World’s tallest man-made structure ever built Exterior was completed on October 1, 2009 and it took over six years to complete Project cost over 1.5 billion dollars The tower holds over 15 current world records
20. Hoover Dam This is a concrete arch-gravity dam which sits in the Black Canyon of the Colorado River Located on the Arizona-Nevada border Built during the Great Depression, it was completed on September 30, 1935 Cost 49 million
21. Canton Tower Located in Guangdong region of China Became operational on Sept 29, 2010 for the Asian Games Second tallest free-standing structure in the world at 1968.5 ft. The towers distinct twisted shape is a design patented by a Russian architect (hyperboloid structure)
23. Warsaw Radio Mast Located in Konstantynów, Gąbin, Poland Second tallest land stucture ever built and stands at a height of 2120.67 feet Used by Warsaw Radio-Television for longwave radio broadcasting Completed on May 18, 1974 Collapsed on August 8, 1991