This look at execution by electrocution focuses on Old Sparky – the electric chair used exclusively by the United States and its dependencies since 1890.

Back in the 1950's, things were different: it was considered appropriate for Santa to hawk cigarettes and kids to pine for guns.

Sleazy snake oil peddlers once traveled the world selling tonics that made fantastic claims. Some of these products are a bit... unsettling.

The future is here! Unfortunately, I have no hovercar, and robots are still lumbering jokes. Here are some entertainingly outdated visions of the future:

Here are nearly 40 alternately entertaining and shocking advertising examples culled from the golden age of magazine and newspaper advertising:

Meet Randy Regier: This Maine based artist creates amazing works in a retro style that expands on the reckless optimism and futurism of post war America.

The death penalty is hotly contested, but it wasn't always so controversial. Here are 10 of the most brutal, terrifying, and violent means of execution:

What makes a math problem unsolvable? Answers with billions of digits might have something to do with it. These 12 problems and puzzles truly boggle the mind.

One of the most iconic villains of all time gets 100 eye-popping makeovers from 100 artists, from bubblegum pink paint to a nightmarish clown costume.

Was 'The Bloop' made by a mythical sea monster - and did aliens try to send us a message? It's hard to say if these 8 unidentified sounds are signals or noise.