The nine metre (30 feet) high and wide creature is made of bronze, stainless steel and marble and is the creation of renowned artist Louise Bourgeois.
"The Spider is an ode to my mother. She was my best friend. Like a spider, my mother was a weaver," the 95-year-old Bourgeois said in a statement.
"Like spiders, my mother was very clever. Spiders are friendly presences that eat mosquitoes. We know that mosquitoes spread diseases and are therefore unwanted. So, spiders are helpful and protective, just like my mother," she added.