G. Burke Johnston Student Center (most commonly called GBJ) contains student activities rooms also used as classrooms during the day, a Subway food court, and study areas. The Add Caldwell Lounge is located on the upper level, named for Virginia Tech's first student, Addison Caldwell. On the bottom floor of this three-story building is the entrance to the Pamplin tunnel, which connects this building with the adjacent Pamplin Hall; there is also a bridge on the third floor connecting it to Burruss Hall. Perry Street Parking Deck Completed in 2010, the Perry Street Parking Deck is a five-level parking deck that can accommodate 1,300 vehicles. Parking Services now maintains a satellite located on the first floor of the parking deck. In the spring of 2012, a $1.2 million project, funded through the American Recovery and Reinvestment Act (ARRA) of 2009, installed 480 solar panels on top of the parking deck. The solar panels cover an area of 16,000 square feet and are expected to generate about 136,000 kilowatt-hours annually, or about 13% of the total parking deck's power usage. Power plant A campus landmark, the power plant is located across Old Turner Street from the upper quad. Its chimney can be seen from many places throughout Blacksburg. The plant is a cogeneration facility that provides electricity, heat and steam for the campus. Other miscellaneous buildings Alumni Hall Armory Cranwell International Center The Grove (President's Residence) Health and Safety Building Henderson Hall (formerly the President's Residence from 1876-1902) Information/Visitors Center McComas Hall Media Building Moss Arts Center (formerly Shultz Dining Hall) Price House (razed 2005) Smith House Solitude Squires Student Center Student Services Building University Bookstore University Club (razed 2018) Wallace Annex (formerly the Home Management House) War Memorial Chapel War Memorial Gymnasium Wright House Non-building campus landmarks Hokie Stone On the Blacksburg campus, the majority of the buildings incorporate Hokie Stone as a building material. Hokie Stone is a medley of different-colored limestone, often including dolomite. Each block of Hokie Stone is some combination of gray, brown, black, pink, orange, and maroon. The limestone is mined from various quarries in Southwestern Virginia, Tennessee, and Alabama, one of which has been operated by the university since the 1950s. The Duck Pond The Duck Pond is a man-made water feature created in the 1930s, situated along the northwest portion of the Blacksburg campus. The most notable feature is a gazebo located on