Maman (1999) is a bronze, stainless steel, and marble sculpture in several locations by the artist Louise Bourgeois. The sculpture, which depicts a spider, is among the world's largest, measuring over 30 ft high and over 33 ft wide (9.27 x 8.91 x 10.24 metres). It includes a sac containing 32 marble eggs and its abdomen and thorax are made of rubbed bronze. The title is the familiar French word for Mother (akin to Mummy or Mommy). The sculpture was created in 1999 by Bourgeois as a part of her inaugural commission of The Unilever Series (2000), in the Turbine Hall at London's Tate Modern. This original was created in steel, with an edition of six subsequent castings in bronze.
Love it! Flashbacks to Enemy (2013) and the Gonarch from Half-Life.
Aha! The gonarch is what was in my head but I couldn't place it exactly. Thanks!