The Reformed Church of Sap was built in 1885. This year is written above the entrance. It is the second church of the Reformed Church of the village, the first one was built on 8 September 1789 in the neoclassical style and burnt down in 1863. The foundation stone of the new church was laid on 13 July 1885 and consecrated in October 1886. The church was designed by Pál Rózsa, a master builder from Komárno. At this time, the construction of a tower was already allowed, and in 1895 a bell weighing 120 kilos was made from a joint donation with the Catholics. Most of the furnishings are 20th century, but there is also a chalice from 1820. The church was renovated in 1993.
Galéria