Loess grasslands are among the most important vegetation types of the Great Hungarian Plain. This paper compares the composition of vegetation situated on three types of man-made landforms (burial mounds, Devil’s dykes and river dikes) which were built in different historical times. I studied the similarities and differences in their vegetation, focusing on the rare species and plant associations. I studied six burial mounds, two Devil’s dykes and four river dikes. All of the studied landforms were covered by loess steppes, loess cliffs or Artemisia salt steppes. Devil’s dykes had the most valuable vegetation and they preserve a very diverse flora in the landscape.