Old Nicholas Church (Alte Nikolaikirche), Frankfurt

The Old Nicholas Church (German: Alte Nikolaikirche), located near the Römer city hall in the Old Town (Altstadt) of Frankfurt, is a medieval Lutheran temple dedicated to Saint Nicholas, the patron saint of fishermen. The current building dates back to the mid-15th century, replacing the original chapel on this site that stood since the mid-12th century. The foundations of the previous Nikolaikirche found during excavations are now marked on the floor and give the impression of its dimensions.

The Reformation proved a turning point in the history of Nikolaikirche. In the 15th century, the existing structure had a tower with leveled roof and a balcony added. The latter served as a viewing gallery for aristocrats when passion plays and other events took place in the plaza below. In 1543, the church was closed and its altars were demolished.

Over the next 150 years, the building was leased and used as an archive for the municipal jury and, at times, as a warehouse during trade fairs. A trumpeter watchman, stationed in the steeple, announced the arrival of boats up and down the River Main by blowing a horn. The bugle also sounded, like the modern-day alarm, whenever fires were sighted.

In 1838, the church was completely renovated. The previously closed northern portal facing Saturday Mountain was opened, and the roof, gallery, and corner turret were renewed. In 1903, the damaged cast-iron spire was torn down and replaced a year later by the pointed copper roof that still exists.

During World War II, the Alte Nikolaikirche was one of the very few historical buildings in downtown Frankfurt to be spared from destruction by aerial warfare. Only the 19th-century organ, despite being walled in, had become unusable from the effects of the war for reasons not quite known. The reconstruction of the building, which started in the summer of 1947, was completed relatively quickly, by the end of December 1948.

The church has a double aisle hall with a high Gothic choir and 51 bells, four of which are used for peals and 47 for carillons. The church is also renowned for its acoustics. Organ concerts, hand bells, trumpets, choirs, and brass bands perform here regularly. Another attraction is the spiral stairway leading to the gallery which affords a spectacular view of Romerberg Plaza.