10 - 13 April Visit Ljubljana in Slovenia and dance the night away at the International tango festival!
Have a look at tangoslovenia.com.

12 - 13 April Try some fine hot beverages at the Coffee and Tea festival at Manhattan in New York.
Further reading at coffeeandteafestival.com.

21 April is the birthday of Rome Enjoy fireworks, gladiator tournaments and free entrance to all the museums and sights of the city.
Read more about Rome at romaturismo.it.