Interior: main body of the synagogue

An archaeological excavation has showed that in 15th century in the area of present Pinkas Synagogue there were wells, a mikveh and inhabited houses. By 1492 in one of those houses there was a private oratory belonging to a distinguished Prague Jewish family of Horowitz. In 1535 one of the family members, Aharon Meshulam Horowitz, decided to replace the house by a synagogue for his family. In this building we can find components in Gothic and Renaissance styles – for example the reticulated vault is made in the late Gothic style but its ornaments have Renaissance features and the portal is pure Renaissance. Between 1607 and 1625 an annex in Renaissance style was added and so the synagogue was extended with a vestibule, a women's section and a balcony. The architectural plan of the annex was designed by Juda Coref de Herz (the author of the plan to Maisel Synagogue, too).

The floor of the synagogue is below the ground level so it was repeatedly afflicted by floods and moisture. In the second half of 18th century it was necessary to restore aron-ha-kodesh and bimah damaged by flood and so they were changed to the Baroque style. About the same time (in 1793) successful businessman and communal leader Joachim von Popper[1] donated the synagogue with a wrought-iron Rococo grille which adorns the bimah until now. The grille is decorated with an emblem of the Prague Jewish community – Magen David with a Middle-Age Jewish hat.[2]

In 1860, a radical step was taken to solve the problem of floods – the floor level of the synagogue was raised by 1,5 m. The baroque bimah disappeared, the arrangement of the seats was modernized (seats surrounding the walls as in Old-New Synagogue were replaced by the church-like rows) and pseudo-Romanesque style dominated the space. However, less than century later, during reconstruction in 1950–1954, the original floor-level as well as the appearance of the synagogue were restored.

During World War II, the Pinkas Synagogue served as a storehouse of Jewish liturgical utensils, which, after the ban on Jewish services in the autumn of 1941, could no longer be commonly used in Prague synagogues.[3] When the Jewish Central Museum was established in the second half of 1942, the synagogue was also to serve as a repository of monuments, which it collected from Czech and Moravian communities, but also as a conservation office.[4] Although the Jewish Central Museum considered at the beginning of 1943 moving the pre-war exposition of the Prague Jewish Museum to the Pinkas Synagogue, less than a year later it abandoned this idea due to various difficulties and the Pinkas Synagogue remained a warehouse.[5]

In following five years, the walls of the synagogue were covered with names of 77,297 [6] Bohemian and Moravian Jewish victims of Shoah. The names are arranged by communities where the victims came from and complemented with their birth and death date.[7] The memorial was designed by painters Václav Boštík and Jiří John. In 1960 it was opened to public, but it was closed after less than a decade, in 1968, after the Soviet occupation of Czechoslovakia. It was said that the reason for closing was moisture. After the fall of communist regime in 1989 the synagogue had been reconstructed for three years and then opened to public, but it took another three years to restore the inscriptions of the names on the walls that were damaged by moisture.[8] Moreover, in 2002, an old enemy of the synagogue – flood – proved its power and the inscriptions had to be restored again.[9]