Thomas Edison's Laboratory and Estate. Come visit Thomas A. Edison's Laboratory Complex. Explore 20,000 square feet of additional exhibit space, including two floors of the main laboratory building, which were previously closed to the public. Spend an hour or spend the day. The Laboratory is now a self guided experience so you can pick and choose what's interesting to you. Spend an afternoon exploring Glenmont, the estate of Thomas and Mina Edison. He purchased this grand estate for his new bride, Mina Miller Edison, in 1886. Glenmont is where the Edisons raised their children and entertained friends, family and Edison's business associates. Visitors must stop at the visitor center at the Laboratory Complex (211 Main St.) to get a vehicle pass for Glenmont.