The Raeren Parish Church of St. Nikolaus is regarded as one of the most beautiful churches in the Eupener Land. It was built in rough bluestone at the beginning of the 18th century. The windows of this hall church with its three naves have Romanesque round arches, whilst the interior decor is baroque.
The floor of the choir consists of polished bluestone, which makes it appear almost black, whilst in the construction of the pillars the same bluestone was used, but unpolished, which makes it appear pale grey.
The font in the choir was also hewn in bluestone. It replaced the baptistry of former times in 1848.
The main altar is dominated by a baroque painting dating from 1778. It depicts the Annunciation and is by the artist Ludovicus Reinardsteine of Stavelot.
High up above the altar there hangs an undated, heavy crucifix by the Raeren sculptor Leonard Mennicken. The confessionals and pews of the parish church too were made after designs by Leonard Mennicken in the 1930s.
The pulpit, no longer in use today, distinguishes itself by an impressive baldachin. The baldachin covers the pulpit and served as an abat-voix which ensured that the sound of the preacher's voice was evenly distributed throughout the church.
In 1978, furthermore, the interior was supplemented with a way of the cross designed by the Raeren artist André Blank. The depictions in it feature a mixture of classical and modern painting.
The organ, also installed in relatively recent times, is played regularly by internationally renowned organists.
