Pavilions and other green spaces around the Astrodome could also be created to link it with surrounding facilities, including the NFL Houston Texans' stadium. Opened in 1965, the so-called Eighth Wonder of the World once housed MLB's Astros and the NFL's former Oilers, but hasn't been home to a sports team since 1999 and has been closed to all events since 2009. The land institute said bringing the proposal to life would take a coalition from the private and public sectors as well as funding from a variety of sources, including local hotel tax revenues, historic tax credits and philanthropy. The world's first multipurpose domed stadium is also under consideration for a "state antiquities landmark" designation from the Texas Historical Commission that would make it more difficult to tear it down.