I think everyone has seen a pyramid with an engraved eye within or above it . This pyramid appears on the reverse side of the Great Seal of the US and on the 1 dollar bill since 1935. It was suggested to be an element of the Seal in 1782 but previous version was a little different from the one we’ve seen. Instead of unfinished thirteen step pyramid, the eye was above thirteen shields, which as in 13 step pyramid representing 13 stats of the Union. I like second version with pyramid because it kind of symbolizes future growth since pyramid isn’t finished. The motto which you can see above the eye “Annuit Coeptis” translates from Latin as “Providence approves our undertakings”. Also there is a note under the pyramid “Novus ordo seclorum” can be translated as “New order of the ages”.
There are lots of conspiracy theories about this pyramid with an eye. Many people associate it with freemasonry. They think masons might have been the founders of the United States. And indeed one of the actual founders was mason. It was Benjamin Franklin. But the eye pyramid was suggested by non-mason. However it is known that common masonic use of the eye was 14 years after the creation of the Great Seal which means there could be no masonic intervention. There is something else. You can draw an anagram with upside down triangle so you get a star like shown on the picture. The tips of this anagram spell MASON. Personally I do not believe in any conspiracy behind this sign. It just creepy styled art to me.