During our stay at Sofia, we'll spend most of our time wandering around in the city's gardens. While we wander, we'll visit the Ivan Vazov National Theatre, which has a gorgeous fountain, and the city's Russian orthodox church, in which we will be able to see the features that distinguish an orthodox church from a catholic one. At the end of the day we will, as always return to the interrail station to go to Thessalonica, our next stop.