Antony Gormley built this 208 ton, 20 meters or five-story tall steel structure with a wingspan of 54 meters called the Angel of the North in Gateshead, United Kingdom.
About the sculpture, from the website:
It is made of weather resistant steel, containing copper, which forms a patina on the surface that mellows with age
Below the structure are massive concrete piles 22 metres deep anchoring it to the solid rock beneath
The body is hollow to allow for internal inspections with an access door high up on a shoulder blade
It is built to last for more than 100 years and withstand winds of more than 100 miles per hour