The medieval church of Gelence was built in gothic style and dates back to the 13th century. This church is one of the most valuable architectural monuments of the entire region and contains priceless frescos about the legend of the great Hungarian king Saint Laszlo. Its casette ceilings date back to the 13th and 15th centuries.
It is an open-air exhibition presenting the folk architectural heritage of Covasna county, traditional crafts tools, grave cravings, and an important collection of ethnographical and historical artifacts. It gained reputation thanks to its unique agricultural equipment park, technical history repertory, spectacular collection of cast-iron stoves and due to the folk craft workshop-camps.
The Perkő hill that rises above the village of Sanzieni (Kézdiszentlélek) is the most important pilgrimage site in Covasna county. On the peak of Perkő there can still be seen the remains of Szentlélek fortress. A chapel was built in the honour of Saint Stephen, the first christian king of Hungary.
The town is unique in Europe due to its yard space centre and its secessionist styled buildings built in the 18th and 19th centuries. The reformed church in the centre is one of the biggest churches in Transylvania. The Guild Historical Museum Kézdivásárhely gives the factual reality of the town’s past. This institution gives home to the periodic exhibitions of the fine arts.