The Sharena Mosque — sharena means "colourful" or "decorated" in Macedonian — sits on the bank of the Pena River and is the most immediately striking building in Tetovo. Its exterior walls are covered in intricate floral and geometric frescoes in earthy reds, ochres, and blues, an almost unique feature for an Ottoman mosque. Built in 1438, it was rebuilt and extended in the early 19th century, which accounts for much of the surviving painted surface.
The interior is equally ornate, with painted wood ceilings and floral motifs continuing from the exterior. The mosque is still in active use, so dress modestly and remove shoes before entering. It is open to visitors outside prayer times. The riverside setting, with the mountains visible above the town, makes this a genuinely lovely spot to linger.