Tags: Military Structure.
The F4 Object or Rákosi bunker (Hungarian: F4 Objektum or Rákosi-bunker) is a formerly secret nuclear shelter under the downtown of Budapest. It is located 45-50 metres below the surface several kilometres long approximately in a H shape between Kossuth tér and Szabadság tér. It has a direct connection to the Line 2 of the Budapest Metro and a closed tunnel to the Hungarian Parliament Building.
