The Prague Quadrennial event takes place every four years in the Czech Republic in the city of Prague.
This year’s edition will be from June 6th through June 16th, 2019
The second event is Stage Set and Scenery. This event takes place biannually in June in Berlin, Germany.
The dates this year are June 18th to the 20th, 2019.
Both these events gather participants from around the world
I hope you check them out.