Matrimandir is situated at the centre of Auroville, in an open space called Peace. It took 37 years to complete the construction of this Geodesic Dome. It is in the form of a huge sphere surrounded by 12 petals. The dome is covered with golden discs which reflect sunlight, thus giving its radiance.
Inside the central dome is a meditation chamber, containing the largest optically-perfect glass globe in the world. The four pillars that support the structure are symbolic of the four aspects of The Mother as described by Sri Aurobindo.