See the smallest Christmas tree in the world. It was created in the laboratory and consists of only 51 atoms
The atomic Christmas tree was created in the laboratory of the Delft University of Technology. Maura Willems, a physics student, decided to create the smallest Christmas tree in the world. The Christmas tree is made of just 51 atoms and is 4 nanomers tall. Human hair is a giant with it, because it is as much as 40,000 times narrower than it.