Playground

"What is this place?" "First thing I found on that box was these coordinates. Another secret base?"

- Melinda May and Phil Coulson

The Playground is a top secret underground S.H.I.E.L.D. facility at a classified location.

History
During World War II, the Playground was a bunker base belonging to the Strategic Scientific Reserve. Before 2014, Nick Fury refurbished it with modern technology.

Phil Coulson was given a Toolbox to aid him in his mission of rebuilding S.H.I.E.L.D. from scratch after Fury appointed him as the new director. The first thing Coulson found in the Toolbox was the coordinates to this secret base.

Upon arriving, the team met Jemma Simmons, having been dropped off by Fury. The team was also greeted by Agent Billy Koenig, identical brother of Eric Koenig who was stationed at Fury's other secret base, Providence.