Mosaic paving and fountain with Lisbon Opera House in the background, Praca Dom Pedro IV (Rossio Square), Lisbon, Portugal, Europe

Road leading to the Sultan Mosque in the Arab Quarter, Singapore, Southeast Asia, Asia

Town square with restaurant tables and colourful buildings, star shaped paving, Atrani, near Amalfi, Costiera Amalfitana (Amalfi Coast), UNESCO World Heritage Site, Campania, Italy, Europe

The lookout tower at Quinta do Lorde, Canical, east Madeira, Portugal, Atlantic Ocean, Europe

The lookout tower at Quinta do Lorde, Canical, east Madeira, Portugal, Atlantic Ocean, Europe

Shape and design of the stone mosaic flooring, Plaza de Espana, Seville, Andalusia, Spain, Europe

Vicente Traver fountain facing the tower and central building, Plaza de Espana, Seville, Andalusia, Spain, Europe

Senado Square, Macau, China, Asia

Powerscourt Gardens, County Wicklow, Leinster, Republic of Ireland, Europe

Geometric mosaic made of tiles by Sara Morris, Paul-Klee-Platz square, Kunstsammlung Nordrhein-Westfalen arts collection, K20 building, Duesseldorf, North Rhine-Westphalia, Germany, Europe

Walk of Fame with the names of famous rally drivers of the Madeira Wine Rally, black and white ornamental floor mosaic made of cobblestones, Funchal, Madeira Island, Portugal, Europe

Black and white floor mosaic of cobblestones, town hall square, Funchal, Madeira, Portugal, Europe

Tourists on a giant world map at the foot of the Monument to the Discoveries, Padrao dos Descobrimentos, Belem, Lisbon, Portugal, Europe

Paving stone with pattern, Santa Cruz, Madeira, Portugal

Fountains and wave patterns in the cobblestone pavement on the Rossio square or Praca Dom Pedro IV., Lisbon, Portugal, Europe

Black and white ornamental floor mosaic of paving stones, Funchal, Madeira, Portugal, Europe

Black and white pebble floor mosaic, Funchal, Madeira, Portugal, Europe

Pavement in Funchal, Madeira, Portugal

Pavement in Funchal, Madeira, Portugal

Cathedral Iglesia Catedral, on Plaza San Martin square, Cordoba, Argentina, South America

Pavement in Funchal, Madeira, Portugal

Jesuit church of Compania de Jesus, UNESCO World Heritage Site, floor and main entrance, Cordoba, Argentina, South America

Historic town hall square, paved pattern, Cascais, Lisbon Coast, Portugal, Europe

Wave patterns in the cobblestone pavement in front of the National Theatre Dona Maria on the Rossio square or Praca Dom Pedro IV., Lisbon, Portugal, Europe