Detail of external staircase decorated with azulejos (tiles), paco or manor house of Counts of Estoi, Estoi, Algarve, Portugal, Europe

External stairway, Palazzo Contarini del Bovolo dating from the 15th century, San Marco district, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Scala Contarini del Bovolo, an external multi-arched spiral staircase, Palazzo Contarini del Bovolo, District of San Marco, Venice, Italy, Europe

Scala Contarini del Bovolo, an external multi-arched spiral staircase, Palazzo Contarini del Bovolo, District of San Marco, Venice, Italy, Europe

Cottage with external staircase, St. Monans, Fife, Scotland, United Kingdom, Europe

Colourful painted facade, Old town hall, Lindau island, Lindau on Lake Constance, Swabia, Germany, Europe

Winter sportsmen using the closed stairway on own risk in Oberwiesenthal, Erzgebirge, Erz Ore Mountains, Saxony, Germany

External staircase of an oil tank, storage tank for fuel

High-rise residential building, staircase, external stairs, Tokyo, Japan, Asia

External staircase at the BMW Museum, Munich, Bavaria, Germany, Europe

External staircase, typical residential building, orzola, Lanzarote, Canary Islands, Spain, Europe

External staircase of the Royal wing of the Chuteau de Chambord, France