Esplanade – Theatres on the Bay is a performing arts centre located in Downtown Core by the Singapore River. It was named after the Esplanade Park and consists of a concert hall which can seat about 1,600. It has a theatre with a capacity of about 2,000. The unique architectural design has been said to have an appearance similar to either a durian. Hence, the building is known as "the big durians". The structure wasn’t meant to be a durian; it ended up being like that because it seemed to the architects the most interesting way of doing sunshades which are more than 7,000 triangular aluminium sunshades cover its two circular glass shell structures. Glass was used because the views from Esplanade are beautiful in all directions. However, since Singapore is so close to the equator, the aluminium shades also had to be protected from the sunshine and heat radiation making the Esplanade appear like a big durian!