The “Square of Tolerance” in Sofia, Bulgaria spans the sites of the Orthodox St. Nedelya Cathedral, the Sofia Synagogue, the Banya Bashi Mosque, and St. Joseph’s Catholic Cathedral. From many points around this part of the city center, you can stand at ground level and be in direct sightline of several of these houses of worship at once. And at the right times of day, even if you stand with several blocks of buildings separating you from them, their sounds will reach you as the cathedral bells toll and the mosque’s muezzin delivers his call to prayer (ezan). This website documents those sights and sounds and presents them all together in order to provide a more complete perspective of the area’s landscape and soundscape than one could gain from visiting any one part of the center during any one part of the day. (For all the recognition paid to the idea of the square and to the sounds of the bells and the ezan, there are actually few vantage points from which one can view them all at once, and the buildings remain relatively quiet in the public sphere for most of the day, including during parts of their services.) Below you will find links for each of these institutions of faith, and if you click on them you will open up pages with photographs, information, links to each institution’s own site, and sound recordings made outside their sacred buildings. There are of course interesting sights and sounds to be found inside the buildings as well, and you should take every opportunity to explore them online and, while respecting religious and health codes, to visit and experience them in person. This website is dedicated to the publicly visible and audible presence of these and other houses of worship in the center and their contributions to the framing of this part of the city as a “square” of “tolerance”; as such it focuses on documenting them from outside their walls.