40 Fountain Plaza, formerly Key Center South Tower, is a high-rise located in Buffalo, NY.

[1] The building has a twin tower next door, 50 Fountain Plaza (formerly Key Center North Tower), which is four stories taller, and connected by a two-story glass atrium encompassing 18,800 square feet of retail space.

[2][3] Both buildings have distinctive pyramid tops that are trimmed with LED lighting strips which are illuminated at night and can change color for specific occasions or holidays.

[4] In the front of the two towers is a large fountain and reflecting pool in the summer.

[5] In June 2014, it was announced that IBM's new software research facility will become the primary tenant of the Fountain Plaza South Tower, taking up most of the 100,000-square-feet space Delaware North vacated upon moving to the Delaware North Building.