▁ ▁An cient ▁times ▁– ▁AD ▁ 1 0 0 0 ▁Build ers ▁of ▁ancient ▁Egypt ian ▁py ram ids ▁used ▁secret ▁pass ages ▁and ▁bo oby ▁tra ps ▁to ▁protect ▁the ▁bur ial ▁ch amb ers ▁from ▁tomb ▁ro bb ers . ▁In ▁some ▁cases , ▁a ▁secret ▁door ▁to ▁a ▁bur ial ▁chamber ▁was ▁hidden ▁behind ▁a ▁statue . ▁ ▁Early ▁Christians , ▁who ▁were ▁per sec uted ▁by ▁Roman ▁authorities ▁in ▁the ▁ 2 nd ▁century ▁AD , ▁used ▁hidden ▁rooms ▁to ▁conce al ▁their ▁gather ings ▁for ▁worship . ▁ ▁AD ▁ 1 0 0 0 – 1 6 0 0 ▁ ▁In ▁ 1 3 3 0 , ▁Roger ▁Mort imer , ▁ 1 st ▁Earl ▁of ▁March , ▁imprison ed ▁King ▁Edward ▁II ▁of ▁England ▁in ▁a ▁coup ▁d ' état . ▁A ▁small ▁group ▁of ▁armed ▁supp or ters ▁of ▁Edward ▁II ▁used ▁a ▁secret ▁passage ▁to ▁attack ▁Mort imer , ▁who ▁was ▁in ▁Not ting ham ▁Castle , ▁def ended ▁by ▁several ▁hundred ▁soldiers . ▁The ▁attack ers ▁entered ▁through ▁a ▁long , ▁w inding ▁secret ▁passage ▁which ▁led ▁directly ▁into ▁the ▁building ▁in ▁which ▁the ▁queen ▁was ▁lod ged . ▁An ▁accomp lice ▁inside ▁the ▁castle ▁sl id ▁back ▁the ▁bol ts ▁to ▁the ▁door , ▁which ▁allowed ▁the ▁attack ers ▁to ▁arrest ▁Mort imer . ▁ ▁The ▁Pass etto ▁is ▁a ▁passage ▁that ▁links ▁the ▁V at ican ▁City ▁with ▁Cast el ▁Sant ' Ang elo . ▁Pope ▁Alexander ▁VI ▁crossed ▁it ▁in