Antique light bulb collectors: A brilliant obsession 04:53. In an unassuming strip mall in Owings Mills, Maryland, sits one of the greatest collections of its kind in the world.

But as correspondent David Pogue discovers, Shapiro is not alone in an obsession to collect rare and beautiful examples of vintage light bulbs. News Today's news ...

OWINGS MILLS, Maryland − One of the world's great collectors of his kind was nervous, just a bit so. Chad Shapiro gradually turned up the juice on his nearly 140-year-old light bulb.