This pretty small park is popular especially among local bikers who come here because it has a bike self-repair station. However, the park's history is not so pretty - in the 18th century, political prisoners were executed here, hence the name which translates as "Bloodfield".
Wikipedia https://pl.wikipedia.org/wiki/Park_Vérmező
Address (Unnamed Road), Budapest 1013, Hungary
Coordinates 47°30'3.416" N 19°1'37.619" E