Seeing double: Images of the Twins Day Festival

The Twins Days Festival, the world's largest annual gathering of twins, is set to take place from Aug. 5 through Aug. 7, 2016, in Twinsburg, Ohio. While we wait for the 40th anniversary of the festival, here’s a look at some of the stunning images from the festival’s past.

Bob (R) and Bill Kelsey pose for a portrait on Aug. 3, 2013.

Bobbi (R) and Becci Powers on Aug. 4, 2007.

Breanna and Adalynn Ginley on Aug. 4, 2012.

Brooke (L) and Mallorie Allen pose for a portrait on Aug. 8, 2015.

David and Lawrence Demonet on Aug. 4, 2012.

Dick and Bill Bundick on Aug. 4, 2012.

Dick and Bill Bundick on Aug. 4, 2012.

Elderly twins smiling on Aug. 14, 2008.

Gigi and Grace Wood on Aug. 4, 2012.

Identical twin sisters on Aug. 4, 2012.

Identical twins during a look-alikes competition on Aug. 4, 2012.

Identical twins during a look-alikes competition, part of the festival, on Aug. 4, 2012.

Identical twins posing for a portrait on Aug. 4, 2012.

Johanna and Eva Gill on Aug. 4, 2012.

Kat (L) and Margaret King on Aug. 8, 2015.

Perrena and Geneva Bernoudy on Aug. 4, 2012.

Perrina (L) and Geneva Bernovdy (R) turn a jump rope for twins Elly (2nd L) and Emmy Fulks on Aug. 8, 2015.

Rachael (L) and Rhoda Jackson on Aug. 3, 2013.

Rachel (L) and Alyssa Ream pose for a portrait on Aug. 8, 2015.

Skyler (L) and Nick Spencer on Aug. 4, 2012.

Spencer (L) and Skylar Nick on Aug. 8, 2015.