Sultan Qabous Mosque, Muscat, Oman, Middle East

A cleaner mopping the floor at The Red Fort, UNESCO World Heritage Site, Old Delhi, India, Asia

A colourful house on Burano, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

A working man carrying his supplies to the job, Trinidad, Sancti Spiritus, Cuba, West Indies, Central America

Women cleaning the steps outside a church in Lisbon, Portugal.

Hospital Hygiene

Hospital Hygiene

Dairyman playing accordion in front of his house, Schnals Valley, Alto Adige, South Tyrol, Italy

Deutscher Bundestag, German parliement, empty assembly chamber of the agricultural policy committee in Paul-Loebe-Haus, Berlin, Germany, Europe

Library of Deutscher Bundestag, German parliament, Marie-Elisabeth-Lueders-Haus, building, view of the reading room, Berlin, Germany, Europe

Wohnschlange residential apartments for government representatives in Spreebogen, Tiergarten, Berlin, Germany, Europe

Library of Deutscher Bundestag, German parliament, Marie-Elisabeth-Lueders-Haus, building, view of the reading room, Berlin, Germany, Europe

Woman with Spinal Cord Injury sweeping the floor