New Delhi: The inquisitive and restless nature of man has always forced him to do something that truly satisfies his sense of adventure as well as aesthetics. Consequently, man has been constantly building architectural marvels throughout history. But with the advancement of technology, unbelievably mega structures were born, which are the epitome of engineering excellence. Read on to know on such 10 modern engineering marvels in the world. 1. The Great Pyramid of Giza Considered to be among the most remarkable marvels and engineering accomplishments of human history, the Great Pyramid of Giza is the oldest and the largest of all the ancient Egyptian pyramids. The perfect symmetry of the pyramid, its solid structure and exquisitely built interior chambers make it a true wonder of human history. 2. The Great Wall of China One of the impeccable examples of engineering feats, the Great Wall of China was built between 5th century BC to 2nd century BC. This wall was mainly built to protect the locals from the invasion of nomadic tribes. 3. Sydney Opera House One of the most beautiful buildings in the world is the Sydney Opera House. The design for Sydney Opera House was made by Danish architect Joran Utzon. The opera house showcases about 1,500 performances each year viewed by about 1.2 million people. 4. Eiffel Tower One of the most iconic structures in the world, Eifel tower was constructed in 1889 and happens to be the highest building in France. The height of this tower is about 324 meters and it happens to be the most-visited paid engineering wonder of the world. 5. Taj Mahal Taj Mahal is the famous white Marble mausoleum that was built by Mughal Emperor Shah Jahan in commemoration his wife Noor Jahan. The architecture of Taj Mahal, which combines Persian, Indian and Turkish styles, is considered to be one of the finest architectural marvels of the world. 6. Empire State Building Empire State building was America's tallest building from 1931 to 1972. The distinctive architectural design of this building and its cultural importance has made it one of the most famous buildings in the world. The height of Empire State Building happens to be 1,454 ft (443.2 m). 7. The Karakoram Highway Modern feat of civil engineering, the Karakoram Highway is the highest paved road in the world built on some of the most difficult and adventurous mountains of the world. This road is the connection between Pakistan and China. It took about 20 years to complete this road and some 800 people died during the process. 8. Golden Gate Bridge Golden Gate Bridge is the famous suspension bridge in San Francisco. This is one of the most beautiful and most photographed bridges in the world and was recently included in the modern engineering wonders of the world by the American Society of Civil engineers. 9. Panama Canal Panama Canal is one of the biggest ship canals in the world that connects two of the biggest oceans in the world: Atlantic Ocean and Pacific Ocean. This Canal is about 50 miles long international waterway due to which a journey of about 8000 miles round the continent is saved. 10. Bailong Elevator The Bailong Elevator is a glass elevator located in china. It is the highest and heaviest outdoor elevator in the world and is 1,070 feet high. The construction of the elevator began in October 1999 and was opened to public by 2002. It is also known as “Hundred Dragons elevator”. It takes two minutes to ride from the base to the top and can accommodate around 50 people at one trip with a total of 18,000 people daily.