Plenty of historic technologies such as the VCR, camcorder and CD player made their debut at the Consumer Electronics Show. There have also been a lot of failed gadgets, bizarre creations and a general theme of weirdness.

Cameras are everywhere.

CES attendee Limore Shur waits inside a Nikon-powered XXArray. The booth uses 68 cameras that fire at the same time. The images are processed to create a 3D model of the subject that can be placed inside a computer video game. (Steve Marcus/Reuters)

You’ll see concept cars that look incredibly unsafe to take on an actual roadway.

An exhibitor drives the Toyota i-Road. (Michael Nelson/EPA)

Talk to the hand? Here we have a cyborg showdown.

Lumus Ltd. exhibitor Ari Grobman, left, wears a pair of DK40 smartglasses, left, while talking with attendee Darren Kitchen wearing Google Glass during the ShowStoppers exhibition. (Patrick T. Fallon/Bloomberg)

Robots dole out high-fives.

A man dressed as the Bumblebee from the “Transformers” movie series gets a high-five from a show attendee. (Jae C. Hong/Associated Press)

Movie characters sell guitars.

Actor Christopher Lloyd of “Back to the Future” fame arrives in a Delorean at the Gibson guitar booth. (Brian Jones/LVNB via EPA)

There are startling backdrops to keynote speeches.

Sony CEO Kazuo Hirai delivers a keynote address. (Photo by Ethan Miller/Getty Images)

Come for the gadgets, stay for the teeth whitening.

Visitors get their teeth whitened at the Teeth Bright booth during CES. (Joe Klamar/AFP/Getty Images)

Everything goes up in smoke Friday. So enjoy the conference’s unique culture while it lasts.

Bin Zhou of Kimree shows electronic cigarettes at the Kimree booth. The world’s largest annual consumer technology trade show runs through Friday and is expected to feature 3,200 exhibitors showing off their latest products and services to about 150,000 attendees. (Joe Klamar/AFP/Getty Images)