"American Stonehenge"-- the Georgia Guidestones

I'd heard of the guidestones before, I think as a rock band. But I never heard of the actual stones before. There is of course no shortage of conspiracy theorizing about the stones, and their message.
A message consisting of a set of ten guidelines or principles is engraved on the Georgia Guidestones in eight different languages, one language on each face of the four large upright stones. Moving clockwise around the structure from due north, these languages are: English, Spanish, Swahili, Hindi, Hebrew, Arabic, Chinese, and Russian.

Maintain humanity under 500,000,000 in perpetual balance with nature.
Guide reproduction wisely — improving fitness and diversity.
Unite humanity with a living new language.
Rule passion — faith — tradition — and all things with tempered reason.
Protect people and nations with fair laws and just courts.
Let all nations rule internally resolving external disputes in a world court.
Avoid petty laws and useless officials.
Balance personal rights with social duties.
Prize truth — beauty — love — seeking harmony with the infinite.
Be not a cancer on the earth — Leave room for nature — Leave room for nature.

(click to enlarge, via)
Love how the central column is 3'3""-- the number of the PTB-- so the PTB are at the center.