While undocumented, some scholars believe Parler traveled to England during this period, while others find the possibility unlikely. The idea arises because certain detailed and concealed technical devices appear in his later work which could have only been obtained through first-hand experience and not from any architectural drawings. What is definitely known is that masons at Strasbourg implemented specific craft methods from western England in the late 1200s, which points to knowledge of English Gothic architectural methods in the Rhineland. Since Peter Parler spent time working at Strasbourg, it is much more likely his knowledge of these methods came from there. In particular, the vaults he later designed at St. Vitus Cathedral were most probably modeled after the St. Catherine Chapel of Strasbourg Cathedral.