family. The remainder of Edison's estate is now the Edison State Park. The Thomas Edison Center at Menlo Park is jointly administered by the New Jersey Department of Environmental Protection's Division of Parks and Forestry, the Township of Edison, and the non-profit Edison Memorial Tower Corporation. The Edison Memorial Tower Corporation, a 501(c)3, has been instrumental in having the current museum renovated. The renovated museum reopened on June 9, 2012, with old and newly acquired artifacts. The new professional interpretative exhibits were designed by Daniel Schnur. Restoration The tower underwent restoration from 2011-2015. Concrete samples were taken off the facade and sent to a laboratory where they were tested for their specific makeup. This is so the recreated panels could match the old ones that do not need replacing. The Centennial Plaque, which was stolen a number of years ago, was also replaced during the restoration. The lower part of the plaque was sent to a Metallurgist in order to match the color. The restoration was completed in October 2015, and a re-dedication ceremony was held on October 24, 2015. The ceremony showed off the newly refurbished tower, media system which played music from the tower's construction until the 50s, grounds, and will conclude with the relighting of the large light bulb at the top of the tower. Also to note there have been a few Eagle Scout projects in the area. One is the large informational sign across Christie Street from the tower. This project contains information about the Electric Railroad Edison built in that spot. The second project is the sign at the bottom edge of the property, closest to Route 27. The newest project was completed on June 8, 2013, and is a sign closer to the museum. The sign contains information about the museum, the website, and hours of operation. World's second largest light bulb The sphere atop the tower had been called the "world's largest light bulb", however, in 2021, a larger light bulb, 17’ tall and 10’ in diameter, was installed in Tulsa, Oklahoma, on the plaza in front of the Cox Business Convention Center. Another famous sphere, the Union Watersphere, lon-known as the "world's tallest water sphere" is located in nearby Union. See also National Register of Historic Places listings in Middlesex County, New Jersey References External links Thomas Alva Edison Memorial Tower and Museum Article on tower preservation efforts Edison Tower to