As it is Hungarian tradition, many people have taken part in the Midnight Mass on Christmas Eve all over the country.
In these images you can see Cardinál Péter Erdő performing the Mass in Budapest in St. Stephen’s Basilica. The Basilica was full of people celebrating Christmas.
You can find what the Cardinal said in THIS article.
Another important Hungarian Christmas tradition is the Nativity play. This now Christian tradition has roots in old Hungarian paganism and it was intended to bless the homes of people against evil spirits. Another similar old tradition is the regölés.
To find out more about Hungarian Christmas traditions, THIS article is for you.