Details of traditional house, Kunoy Island, Nordoyar, Faroe Islands, Denmark, Europe

Traditional door, Marrakech, Morocco, North Africa, Africa

Old City of Akko, Israel

Exterior of a Cotswolds house called Glenthorne House, Burford, United Kingdom

Marrion Square, House number 29, Dublin, Republic of Ireland, Europe

View inside cooling chamber with banana boxes, Hamburg, Germany

Door sign on the exterior wall of a building, 100, Chicago, Illinois, USA

Room number labelling, "Generator" Hostel, Berlin, Germany

Room number labelling, "Generator" Hostel, Berlin, Germany

Souvenirs, licence plates and door signs, Havana, Cuba

For Sale sign - "Se Vende" - in the spa town of Monchique, Algarve, Portugal

Schnoor Quarter, old part of town, Bremen, Germany

Sliding doors of an airplane hangar, Tempelhof, Berlin, Germany, Europe

Close-up of closed doors of a building, New Orleans, Louisiana, USA

Close-up of a neon cafe sign at a door, Genoa, Italy

Number 10 Downing Street, Westminster, London, England, United Kingdom, Europe

Entrance to the Pierre Laudoueneix Antiquites shop at the l'hotel Dongier in L'Isle-sur-la-Sorgue in Provence, Southern France. Known for its twice a week markets and numerous antique and design shops, this busy market town is high on the must-see list of visitors to Provence.

Wooden Door With Patina, Kunming, Yunnan, China