Pope Francis arrives for his weekly general audience in St. Peter's Square at the Vatican, Rome, Lazio, Italy, Europe

Queen Victoria statue in front of National Library building, Republic Square, Valletta, Malta, Mediterranean, Europe

Masks at Venice Carnival in St. Mark's Square, Venice, Veneto, Italy, Europe

Sign over gate and stalls, Christmas Market (Christkindlmarkt) on Kapellplatz Square, at twilight, Altotting, Bavaria, Germany, Europe

Tourists walking on footbridges during high tide in St. Mark's Square, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Plaza Mayor, largest public square in Colombia, colonial town of Villa de Leyva, Colombia, South America

Taken from Campanile in St. Marks Square looking over The Lido, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Canada Square, Canary Wharf, West India Docks, Docklands, London, England, United Kingdom, Europe

Traditional housing, Praca de Santiago (St. James' Square), Old Town, UNESCO World Heritage Site, Guimaraes, Minho, Portugal, Europe

St. Lukes Church and Fortress at dusk, Old Town, UNESCO World Heritage Site, Kotor, Montenegro, Europe

Duomo Square at Christmas, Ortygia, Siracusa, Sicily, Italy, Europe

The harbour, Lerwick, Shetland Islands, Scotland, United Kingdom, Europe

St. Stephen's Basilica on Szent Istvan Ter Square, Old Town of Pest, Budapest, Hungary, Europe

People sitting at Stortorget square in Gamla Stan, Stockholm, Sweden, Scandinavia, Europe

Interior view, New Public Library, Mailaender Platz Square, Architect Prof. Eun Young Yi, Stuttgart, Baden Wurttemberg, Germay, Europe

View of St. Paul's Cathedral and Paternoster Square, City of London, London, England, United Kingdom, Europe

Fiesta de la Virgen de la Candelaria, Main Square, Puno, Peru, South America

Preseren Square, Ljubljana, Slovenia, Europe

A market scene in the main square, Rynek Glowny, in the medieval old town, UNESCO World Heritage Site, Krakow, Poland, Europe

Cloth Hall and the Adam Mickiewicz Monument, in the Main Square, medieval old town, UNESCO World Heritage Site, Krakow, Poland, Europe

The Square Head Building, Nice, Alpes-Maritimes, Cote d'Azur, French Riviera, Provence, France, Europe

Statue of the romantic poet Mickiewicz in front of The Cloth Hall (Sukiennice), Main Market Square (Rynek Glowny), Old Town District (Stare Miasto), Krakow (Cracow), UNESCO World Heritage Site, Poland, Europe

Essaouira, Morocco, North Africa, Africa

People walking in Royal Exchange Square, the commercial heart of the city, Glasgow, Scotland, United Kingdom, Europe

Frieze, Persepolis, UNESCO World Heritage Site, Iran, Middle East

The Mangia Tower above the Piazza del Campo in Siena, UNESCO World Heritage Site, Tuscany, Italy, Europe

Statue of the dwarf Seneb, with wife and family, Cairo Museum, Cairo, Egypt, North Africa, Africa

Alamo Monument and the State Capitol in Austin, Texas, United States of America, North America

The exterior of the modern Palacio do Planalto in Brasilia, UNESCO World Heritage Site, Brazil, South America

Raffles Hotel, Singapore, Southeast Asia, Asia

Aerial of Evergreen containers and cranes in a terminal in Taiwan, Asia

Bluebells in an ancient wood in spring time in the Essex countryside, England, United Kingdom, Europe

Hieroglyphics on the obelisk in Hippodrome Square in Istanbul, Turkey, Europe

Deep gorge passed by the King's Highway between Kerak and Shobak, biblical Zered, Wadi Hasa, Jordan, Middle East

City skyline with Battery Park at the southern tip of Manhattan and the World Trade Center, 100 storeys, 1350 ft tall, opened 1970, destroyed in September 2001, in New York, United States of America, North America

View from Gaia of replica Viking ship Oseberg, Chesapeake Bay, United States of America, North America

Aloe species in the desert on the border of Botswana and Namibia, Africa

Chinese woman with flag, the Heavenly Gate to the Forbidden City, Tiananmen Square, Beijing, China, Asia

Easter decorations on Old Town Square, Stare Mesto, Prague, UNESCO World Heritage Site, Czech Republic, Europe

Times Square, Manhattan, New York City, New York, United States of America, North America

Shops in Castle Square, Caernarfon, Wales, United Kingdom, Europe

Piazza Garibaldi (Garibaldi Square), Mexico City, Mexico, North America

Isle of Muck, Inner Hebrides, Scotland, United Kingdom, Europe

National Gallery and Trafalgar Square, London, England, United Kingdom, Europe

Sydney Opera House, Sydney, New South Wales, Australia, Pacific

Stowe House, Stowe Landscaped Gardens, Buckinghamshire, England, United Kingdom, Europe

Council House, Market Square, Nottingham, Nottinghamshire, England, United Kingdom, Europe

Inside the Red Fort, Agra, UNESCO World Heritage Site, Uttar Pradesh, India, Asia-

St. Francis' church, the first burial place of Vasco da Gama, Cochin, Kerala state, India, Asia

Republican Guard, Parliament, Syntagma, Athens, Greece, Europe

Black Mountain, Brecon Beacons, Powys, Wales, United Kingdom, Europe

Brouwers Gracht, Amsterdam, Holland, Europe

Piazza Navona, Rome, Lazio, Italy, Europe

Friday Mosque, Yazd, Iran, Middle East

Hot springs, Furnas, island of Sao Miguel, Azores, Portugal, Europe

People bathing in volcanic pool, island of Sao Miguel, Azores, Portugal, Europe

Puerta del Sol, Madrid, Spain, Europe

Grand Place, Lille, Nord, France, Europe

Quincy Market, Boston, Massachusetts, New England, United States of America, North America

Onion domes of St. Basil's Cathedral in Red Square, UNESCO World Heritage Site, Moscow, Russia, Europe

Detail, Friday Mosque, Yazd, Iran, Middle East

Polaroid image of fish on sale in fish market, Essaouira, Morocco, North Africa, Africa

Polaroid of mural of Che Guevara painted on wall, Havana, Cuba, West Indies, Central America

Place Stanislas, formerly Place Royale, built by Stanislas Leszczynski, King of Poland in the 18th century, UNESCO World Heritage Site, Nancy, Meurthe et Moselle, Lorraine, France, Europe

Doorways to two Georgian houses, Merrion Square, Dublin, Republic of Ireland, Europe

View of visitors and Christmas Market stalls at Christmas Market, Millennium Square, Leeds, Yorkshire, England, United Kingdom, Europe

Clown convention, Bognor Regis, West Sussex, England, United Kingdom, Europe

Zambezi River and bridge from bend at second and third gorges, Victoria Falls, Zimbabwe, Africa

Open air food market, Vatra Dornei, Moldavia, Romania, Europe

St. Basils Cathedral, Red Square, UNESCO World Heritage Site, Moscow, Russia, Europe

View towards Luskentyre and the hills of North Harris from Isle of Taransay, Outer Hebrides, Scotland, United Kingdom, Europe

Detail of scupltures, St. Mark's Square, Korcula Town, Korcula Island, Croatia, Europe

Typical restaurants overlooking Piazza Bra after dark, Verona, Veneto, Italy, Europe

Plaza Independencia (Independence Square), Montevideo, Uruguay, South America

Religious man in Durbar Square, Kathmandu, Nepal, Asia

Braganza House in Goa, India, Asia

Queen Anne Square and Trinity Church dating from 1726, the oldest Episcopal parish in the state, designed by local builder Richard Munday, inspired by Wren's churches, in historic Newport, Rhode Island, New England, United States of America, North America

His Majesty King Bhumibol Adulyadeji at the Opening of Parliament in Bangkok, Thailand, Southeast Asia

Meeting place around the National Monument in Dam Square, Amsterdam, The Netherlands, Europe

Traditional Citroen DS saloon cars in Place du Marche town square, Richelieu, France

Restaurant, Grand Place, UNESCO World Heritage Site, Brussels, Belgium, Europe

Horse drawn carriage at Christmas Market and Gothic Tyn Church at twilight, Old Town Square, Stare Mesto, Prague, Czech Republic, Europe

Hotel de Ville (Town Hall) in the Grand Place illuminated at night, UNESCO World Heritage Site, Brussels, Belgium, Europe

Fellows Square with modern sculpture in front of Old Library, Trinity College, Dublin, Republic of Ireland (Eire), Europe

A sunny square with a church, pavement cafes, and small shops, in old Corfu. Island of Corfu, Ionian Islands, Greek Islands, Greece, Europe

Tourists in the cafe contemplate the Duomo and its square, Milan, Lombardy, Italy, Europe

Kaiser Wilhelm Memorial church and sculpture Berlin by Brigitte and Martin Matschinsky-Denninghof at Kurfuerstendamm, Berlin, Germany, Europe

Restaurants, Piazza Vecchia, Bergamo, Lombardy, Italy, Europe

Market Square from restaurant, Old Town, Wroclaw, Silesia, Poland, Europe

Saint Mary's Basilica in Market Square, UNESCO World Heritage Site, Krakow, Poland, Europe

View of Rabin Square pond and Town Hall, Tel Aviv, Israel, Middle East

View of Rabin Square pond, Tel Aviv, Israel, Middle East

St. Paul's Cathedral, and red double decker bus, London, England, United Kingdom, Europe

Cartagena, Region of Murcia, Spain, Europe

Cafe scene at night in the old town, Placa del Princep, Mahon, Menorca, Balearic Islands, Spain, Europe

The Library of Birmingham, illuminated at night, Centenary Square, Birmingham, West Midlands, England, United Kingdom, Europe

Tartini square at dusk, Piran, Slovenia, Europe

Interior of The Doge's Palace (Palazzo Ducale), Venice, UNESCO World Heritage Site, Veneto Province, Italy, Europe

Street Cafe at Schlossplatz Square, Meersburg, Lake Constance, Baden-Wurttemberg, Germany, Europe

The main square, Rynek Glowny, in the medieval old town, UNESCO World Heritage Site, Krakow, Poland, Europe