Can you imagine how life would be if we didn't have the light bulb, airplane, or even that smartphone that you can' t go anywhere without? Thanks to some great minds, you don't have to imagine. And a small museum in Alexandria recognizes and honors these individuals whose inventions made life a little easier. Located in the U.S. Patent and Trademark Office building at 600 Dulany Street, and operated by the National Investors Hall of Fame, the museum recognizes individual engineers and investors who hold a U.S. patent of highly significant "technological advances that make human, social, and economic progress possible. The museum displays a gallery of digital portraits of the icons, who are currently over 600 investors including historic persons from the past three centuries and about 100 living inductees. Other than the gallery, the museum offers exhibits of artifacts and documents from the collections of the Patent and Trademark Office, interactive kiosks including one for kids, and a theater. It also promotes future generations of investors by sponsoring special programs and competitions such as the Invent Now Kids program, Camp Invention, Club Invention, and the Collegiate Inventors Competition. The National Investors Hall of Fame museum is free to the public and is open from 10 am-5 pm on weekdays and 11 am -3 pm on Saturdays.