The M. P. Birla Planetarium near Chowringhee is one of the largest planetariums in the world and a Kolkata landmark since 1963. Its distinctive circular building, inspired by a Buddhist stupa, hosts regular astronomy shows in several languages beneath a large domed screen. A ticketed attraction popular with families and school groups, it offers an accessible and engaging introduction to the night sky, conveniently set among the colonial-era sights of the city centre.