Neo-Renaissance grain granary built in 1844 r. in the fork of the Vistula and Narew, at the site of the Swedish rampart, on the initiative of the Bank of Poland in order to activate the grain trade. The designer of the building was probably Jan Jakub Gay. The granary is made of brick and plastered, four-story, topped with an attic, with a special ramp, above which fragments of cranes. Destroyed in September 1939 r. Currently in ruin.
Parish Church. pw. Our Lady of the Scapular. Made of bricks, stylless. Built in years 1928-38 (with the help of the Polish Bridge Battalion from Kazuń), destroyed during World War II and then rebuilt and rebuilt. In the main altar there is a painting of Our Lady of the Scapular of 1845 r. enjoying local cult.
Monument in honor of the defenders of Modlin in September 1939 r. unveiled in 1957 r. – in the center of the village.
In the south. part of the village is a wooden former Mennonite temple (house of prayer) built in 1892 r. (currently adapted for a residential building). The temple was built on a rectangular plan, carcass-post-log construction, timbered exterior, with situated on the north-east. façade with the preserved frame of the old door. Covered with a gable roof. The inside is plastered, the original interior layout has not been preserved.
A neglected Mennonite cemetery. There are partially preserved tombstones in the form of sandstone slabs crowned with semicircularity, concrete or terrazzo with inscriptions made in German using Gothic letters and geometric and plant ornaments. In the upper part of the tombstones, monograms of the dead are engraved, surrounded by a decorative ornament in the shape of e.g.. grapevines. There is no sign of the cross on them. The inscriptions about the dead are relatively long and are often placed on both sides of the records.
The Mennonites are a religious and social movement started in the 16th century. by Catholic priest Menno Simmons (1496-1559) as a part of the Protestant Anabaptist group. The members of the movement were characterized by: strict adherence to the Ten Commandments, pacifism, amicability, rejection of the baptism of children (they introduced adult baptism), not taking up public functions and taking oaths. They were bound by strict discipline and ecclesiastical discipline, as well as performing work that served the general public. This movement initially took place in the Netherlands, north-west. Germany and Switzerland. As a result of persecution, mainly on the part of Catholics, he moved, initially to other European countries, and then the world. Mennonite settlement, especially strong in Poland, took place in Eastern Pomerania, along the Vistula River (Marshland, Kuyavia, Mazovia), in Eastern Lesser Poland and on the Noteć river (around Drezdenko). Currently, this movement has approx. million people, and its main center is in Germantown (USA). W 1988 r. The Friends of Mennonite Culture Club was founded in Tczew, which, together with the local Vistula Museum, promotes and documents the activities of Mennonites in Poland. Mennonites, also called in Mazovia "Olendrami”, were settlers who came here approx. half. 18th century. from the areas of Żuławy and Kujawy, descendants of settlers from Flanders and Friesland (border of today's Germany and the Netherlands), flowing to Polish lands from the middle of the. XVI w. W 1764 r. Jan August Hylzen, a leaseholder of the Kazuń estates, brought the first group of Mennonites, who founded a village called Kazuń Nowy or Kazuń Niemiecki. The task of the settlers was to clear the riparian forests of the Vistula and drain the swamps and areas periodically flooded by the waters of the Vistula by building a system of drainage ditches. They established arable fields in the lands obtained in this way, orchards and meadows. They were fenced with characteristic ones – still encountered in this area today – fences of intertwined willow branches. Their task was to stop the flow rate of water periodically flooding these areas and to stop the river sludge fertilizing fenced plots. W 1795 r. lived in Kazuń Nowy 15 settler families. The local Mennonites in terms of denomination from 1849 r. assigned to the Evangelical parish–augsburskich. This resulted in their assimilation with Lutherans of German nationality, inhabiting the Vistula areas and their almost complete Germanization. After the end of World War II, they were treated as the German population and displaced to Germany.
Oxbow lakes of the Vistula are located in the vicinity of Kazuń Nowe. on the south. zach. forest reserve of the Kampinos Forest – Kazuński Bor (remains of fortifications in the forest).
To the old bridge over the Vistula River from the south. adjacent to the nature reserve "Ruska Kępa" created in 1981 r. on the surface 15,34 ha, to protect the willow and poplar riparian forest, unique in Mazovia, with numerous monumental trees, especially poplars with circuits reaching 750 cm (np. Napoleon's poplar).