A centre of the Great Plain, the city of Karcag and its environs are known for the mounds characteristic of the Cumania (Kunság) region. The Barna windmill at in the settlement belongs to the most valuable built heritage of Jász-Nagykun-Szolnok County. The entrance to the Hortobágy National Park southern visitor centre is situated next to the mill.
For centuries the city lived from the milling industry and from handcrafts. Once up to 60 mills operated here, some 11 of them windmills. Today only the Barna windmill constructed in 1858 in a vernacular style remains as witness to that period.
Close to the Barna mill, the southern visitor centre of the Hortobágyi National Park presents the particular flora and fauna of the park in its exhibition. From here the puszta can be explored by bicycle or in horse carriages. One popular target for tours isthe Zádor Bridge, a valuable built heritage.
As many as 24 of the protected burial mounds called Cumanian Mounds are located in and around Karcag and the small Gregory Mounds and Cellar Mound have been protected since 1987. These artificial earthen hills are 5 to 10 metres in height, 20 to 30 metres in diameter and of conic or semi-circular shape. Most of them served as burial sites, sentinel posts or border mounds.