Wikipedia:
The meticulous measurements of an expert on Famagusta's antiquities revealed that the distance between the churches of the two orders was no more than 3.10 m. The northern one (the larger one with the small bell tower) was the Templar church dedicated to St. Anthony from the end of the 13th or beginning of the 14th century. It is a single-nave building with an apse that covers a hemisphere. The ribs of its three cross vaults rest on delicate pyramid-shaped consoles. A lot of light penetrates the interior, which is now completely empty, through the narrow windows and the large round window. On the outside, under the round window, you can see projections that probably supported a small gallery, which formed a vestibule with its arches at the front. From the south side, a stone staircase leads to the roof with the small bell tower from the 16th century.
The much smaller but higher church of the Knights of St. John was built a few decades later. At first glance, it looks more like a tower. There are no buttresses supporting the sides. It consists of a nave covered by a cross vault and a fairly large semicircular apse. Light penetrates the interior through the lancet-shaped windows above the three portals. The main portal on the west side has slightly tapered archivolts and a coat of arms frieze above the entrance. On the facades of both churches, high up in the corners, you can see holders for the order's flagpoles.