Kind: captions Language: en the Statue of Liberty under its skin lies one of the secrets to the Eiffel Tower's structural strength in 1870 renowned French sculptor AUST bartoldi imagines a 300t high statue in the form of a woman celebrating the signing of the US declaration of independence bartoldi began his thoughts about the Statute of Liberty in Egypt he was making terracotta little models but when it's about realizing and he has to turn sculpture into a modern phenomenon um the reason it can be that gigantic is that it's Hollow tall and in the shape of a person yet Hollow how does this structure hold [Music] together it's 6:00 a.m. in New York City before thousands of visitors arrive Ranger Matt house leads the way on an exclusive tour Into the Heart of the [Music] statue the similarities with the Eiffel Tower are easy to spot what's most impressive about the interior of the Statue of Liberty is how all of this Iron and Steel works together to hold her over 300 ft above New York Harbor over a 100 Years of wind and rain and she still stands because of this interior structure after the teams riveted together the internal structures iron beams they next installed a secondary structure made out of hundreds of iron bars on top of These Bars they attach the copper skin piece by piece and the secret to these layers holding together is in one simple but incredibly effective solution rivets the inside of the Statue of Liberty can be a disorienting place but what you're seeing are hundreds of copper plates so that's the dark metal that you see all along the interior here that's her skin and those copper plates were all riveted together with thousands of little copper rivets but the copper skin has to be held up so you can see there are thousands of Steel bars connect the copper plates to the secondary iron bars and all of those iron bars connect back here to these iron pylon building High Building light and building strong mastering the art of riveting for the Statue of Liberty would prove crucial for years to come [Music]