The 3D Toronto sign, officially the 3D TORONTO sign and commonly known as the Toronto sign, is an illuminated three-dimensional sign in Nathan Phillips Square in Toronto, Ontario, Canada, that spells the city's name. It is 3 metres (9.8 ft) tall and 22 metres (72 ft) long (prior to the addition of the maple leaf and the medicine wheel), lit by LED lights controlled via Wi-Fi that can create an estimated 228 million colour combinations, approximately equal to what the human eye can sense.