Traditionally, circuses have used animals like lions, tigers and elephants to perform tricks and acts.
Recently, however, there has been a growing call for boycott of circuses that use animals in their acts.
Countries like the Netherlands, Ireland and Mexico have even banned the use of animals in circus acts.
This is due to growing concerns about the ethics of confining and training wild animals to perform unnatural tricks.
Now, a circus in Germany has taken an innovative step to fight animal cruelty.
Circus Ronacalli has begun to phase out real animals in their acts, replacing them with beautiful 3D holograms instead.
Circus Roncalli became the first in the world to incorporate 3D holograms of animals in their show.
It has partnered with Bluebox and Optoma to create magnificent projections that recreate acts that one might see in a traditional circus.
Many have applauded Circus Roncalli for refusing to use live animals in their acts.
The use of Holograms has also become a huge hit among Kids!