Students at Conrad Weiser High School may have just set a Guinness World Record.
The students spent the day assembling the world's largest Sierpinski pyramid. That's a pyramid with four equilateral triangular faces.
The finished product is more than 20 feet tall. There are 4,096 regular tetrahedra made of card stock, 500 yards of packing tape, hundreds and hundreds of toothpicks and more than a thousand mini glue sticks.
More than 100 students have been working on this since November.
"My students have rounded up friends, My one student brought in her mother, her grandmother, her little sister. Lots of people have been rolling up their sleeves in getting this done," said Andrea Schaeffer.
Students built the pyramid Friday because the Polish mathematician the pyramid is named after was born on that day in 1882.