Oreos are the world's best selling cookie, and enough of them are made every year to circle the globe 4 times when stacked. Still, so much about them is little known.
Here are 10 uncommon facts about the iconic treat:
Number 10. It takes just under an hour to make one. 59 minutes, to be exact. In whipping up a year's worth, the company goes through roughly 20 million pounds of cocoa and mixes close to 50 million pounds of sweet, creamy filling.
Number 9. The cookies can reveal a lot about the person eating them. According to a 2004 survey conducted by Kraft Foods, those who twist are apt to be sensitive. Energetic people tend to dunk, and those who just dive right in and take a bite possess great self-confidence.
Number 8. The Double Stuf variety does not, in fact, contain twice as much filling. A high school math class took measurements and ran the numbers back in 2013. They found the cookies billed as double really only have 1.86 times the stuf.
Number 7. Oreos really are addictive. For lab rats, anyway. In a 2013 study, the cookies proved to be as popular among test rodents as cocaine or morphine. The researchers concluded the high fat and high sugar combo triggers the brain's addiction hotspots.
Unusual Oreo flavors that have been released recently:
Number 6. Hydrox is not an Oreo knockoff. The somewhat name-challenged cookies debuted in 1908, years before Oreos arrived on the sandwich cookie scene.
Number 5. Flavor makers can get incredibly creative. The cookies are sold in many countries, and keeping everyone happy can require catering to local tastes. Unique varieties include Green Tea, Alfajor, and Filed Cupcake.
Number 4. There may be a deeper meaning behind the cookie's stamped design. People who specialize in motifs and such have drawn similarities between visual elements on the cookie and some of historical importance. Those include symbols associated with the Freemasons and the Knights Templar of Crusades fame.
Number 3. Nobody knows why they're called Oreos. However, there are some theories. A popular one is that the name is somehow connected to 'or,' the French word for gold, as the cookies were originally wrapped in a gold package.
Number 2. The cookie has an honorary street in New York City. It's located in Chelsea at 15th Street and 9th Avenue, which happens to be where the very first Oreo cookie was made.
Number 1. They're new to Russia. While people in the U.S. have been enjoying the cookie since 1912, the official Russian debut of the Oreo didn't occur until 2015.
More from AOL.com:
The 14 best new buildings on the planet, according to architecture fans
8-year-old writes a touching letter to Cam Newton
Meet 5 of the world's wealthiest and most eligible bachelorettes