Holy Trinity Cathedral (Sv. Trīsvienības katedrāle) is a Lutheran cathedral in the centre of Liepāja, but its main claim to fame is neither its architecture nor its history — it is the organ. Built between 1779 and 1785 by Heinrich Andreas Contius, the instrument has 7,000 pipes and 141 stops, and is widely considered the largest surviving historically unreconstructed mechanical organ in the world. Unlike most historic instruments that were enlarged or rebuilt over the centuries, this one has been carefully maintained in its original configuration.
Recitals are held regularly, and the cathedral runs a concert programme throughout the year. Even if you are not normally interested in organ music, hearing this instrument in its purpose-built space is an experience worth planning around. The cathedral building itself is an elegant Baroque structure with a high nave and stately wooden interior. Arrive a few minutes before a recital to appreciate the silence, which makes the first note all the more startling.