Inside The Mamertine Prison, This Metal Grate In The Floor Covers Where The Prisoners Were Lowered Into Their Prison Cell, Rome, Italy

steps artwork floor grate history italy mamertine prison metal paul peter prison prison cell rome tourist attraction tunnel underground unesco unesco world heritage site world heritage site mamertine cell tourist attraction world heritage site horizontal color image photography europe italian culture travel destinations old the past indoors no people capital cities famous place ancient ancient rome roman national landmark nobody european capital city typically italian traditional culture tradition traditional traditionally italian traditionally italian antiquity antiquities unesco world heritage sites world heritage sites historical historic cultural culture no one no one inside colour image colour color