R2-D2, from Return of the Jedi National Museum of American History

In the fictional universe of George Lucas' Star Wars films, robots called droids (short for android) come in many shapes and serve many purposes. Two droids-R2-D2 and C-3PO-have won enormous popularity for their supporting roles in all six of the series.

Star Wars: The Force is strong with this museum

77 Droid C3po Stock Photos, High-Res Pictures, and Images - Getty

Are the first 6 Star Wars movies told from R2D2 & C3PO's

Smithsonian — These aren't the droids you're looking for.

77 Droid C3po Stock Photos, High-Res Pictures, and Images - Getty

Star Wars' costume exhibit will unleash the force at the DIA

Banged-Up, but Still Sassy, R2-D2 and C-3PO Are Back and Thrilling

National Museum of American History

C-3PO and R2-D2, NMAH Iconic Collections on View