Biharkeresztes is a town in Hajdú-Bihar County , Berettyóújfalu District . Sights Reformed Church – during the restoration work, it was revealed that some of its windows were built in the Romanesque style , which proves that the parts in question may have been built in the Árpádian period, and the church only came to the Reformed in the 16th century or later. The building was declared a monument in 1988. ) […]