Porta Nigra
North facade
Porta Nigra
North facade
Porta Nigra
Northeast facade
Porta Nigra
Northeast facade
Porta Nigra
North facade
Porta Nigra
North facade
Porta Nigra
Northeast facade, facing Southwest
Porta Nigra
East facade, apse exterior
Porta Nigra
East facade, apse exterior
Porta Nigra
Southeast facade
Porta Nigra
South facade
Porta Nigra
South facade
Porta Nigra
Portals, Southern facade
Porta Nigra
Interior, West wall
Porta Nigra
Interior, West wall
Porta Nigra
Exterior apse detail, Northern side
Porta Nigra
Exterior apse detail, Northern side
Porta Nigra
Exterior apse detail, top colonnade
Porta Nigra
Exterior apse detail
Porta Nigra
Exterior apse detail
Porta Nigra
Upper elevation detail, North side, interior
Porta Nigra
Upper elevation detail, interior
Porta Nigra
Upper elevation detail, interior
Porta Nigra
Upper elevation detail, interior
Porta Nigra
Upper elevation detail, interior West wall
Porta Nigra
Upper elevation detail, interior West wall
Porta Nigra
Inscription, West wall interior
Porta Nigra
Inscription, West wall interior
Porta Nigra
Inscription, West wall interior
Porta Nigra
Masonry detail, gate interior, graffiti
Porta Nigra
Masonry detail, gate interior, graffiti
Porta Nigra
Inscription, West wall interior
Porta Nigra
Inscription, West wall interior
Porta Nigra
Masonry detail, gate interior, graffiti
Porta Nigra
Masonry detail, gate interior, graffiti
Porta Nigra
Exterior: North Facade
Porta Nigra
Exterior: Northeast Facade
Porta Nigra
Interior: Center of Portico at Ground Level
Porta Nigra
Exterior: Southern Facade
Porta Nigra
Interior: Southeast corner entrance room on ground level
Porta Nigra
Interior: Second Level Hallway
Porta Nigra
Interior: West Tower Second Level
Porta Nigra
Interior: Second Level Hallway
Porta Nigra
Interior: West Tower Third Level
Porta Nigra
Interior: West Tower Fourth Level
Porta Nigra
Interior: Third Level South Hallway
Porta Nigra
Interior: East Tower Third Level
Porta Nigra
Interior: East Tower Third Level
Porta Nigra
Interior: East Tower Third Level
Porta Nigra
Interior: North Third Level Hallway
Porta Nigra
Interior: East Tower Second Level
Porta Nigra
Interior: East Tower Second Level
Porta Nigra
Exterior: South Facade
Porta NigraNorth facade
Porta NigraNorth facade
Porta NigraNortheast facade
Porta NigraNortheast facade
Porta NigraNorth facade
Porta NigraNorth facade
Porta NigraNortheast facade, facing Southwest
Porta NigraEast facade, apse exterior
Porta NigraEast facade, apse exterior
Porta NigraSoutheast facade
Porta NigraSouth facade
Porta NigraSouth facade
Porta NigraPortals, Southern facade
Porta NigraInterior, West wall
Porta NigraInterior, West wall
Porta NigraExterior apse detail, Northern side
Porta NigraExterior apse detail, Northern side
Porta NigraExterior apse detail, top colonnade
Porta NigraExterior apse detail
Porta NigraExterior apse detail
Porta NigraUpper elevation detail, North side, interior
Porta NigraUpper elevation detail, interior
Porta NigraUpper elevation detail, interior
Porta NigraUpper elevation detail, interior
Porta NigraUpper elevation detail, interior West wall
Porta NigraUpper elevation detail, interior West wall
Porta NigraInscription, West wall interior
Porta NigraInscription, West wall interior
Porta NigraInscription, West wall interior
Porta NigraMasonry detail, gate interior, graffiti
Porta NigraMasonry detail, gate interior, graffiti
Porta NigraInscription, West wall interior
Porta NigraInscription, West wall interior
Porta NigraMasonry detail, gate interior, graffiti
Porta NigraMasonry detail, gate interior, graffiti
Porta NigraExterior: North Facade
Porta NigraExterior: Northeast Facade
Porta NigraInterior: Center of Portico at Ground Level
Porta NigraExterior: Southern Facade
Porta NigraInterior: Southeast corner entrance room on ground level
Porta NigraInterior: Second Level Hallway
Porta NigraInterior: West Tower Second Level
Porta NigraInterior: Second Level Hallway
Porta NigraInterior: West Tower Third Level
Porta NigraInterior: West Tower Fourth Level
Porta NigraInterior: Third Level South Hallway
Porta NigraInterior: East Tower Third Level
Porta NigraInterior: East Tower Third Level
Porta NigraInterior: East Tower Third Level
Porta NigraInterior: North Third Level Hallway
Porta NigraInterior: East Tower Second Level
Porta NigraInterior: East Tower Second Level
Porta NigraExterior: South Facade