Silhouette at dawn of the Blue Mosque built by Sultan Ahmet I in 1609, designed by architect Mehmet Aga, Istanbul, Turkey, Europe

Elevated view over the Djemaa el-Fna, Marrakech (Marrakesh), Morocco, North Africa, Africa

The spiral mosque of the Kassem Darwish Fakhroo Islamic Centre in Doha, Doha, Qatar, Middle East

20 Fenchurch Street Building, nicknamed the Walkie Talkie due to its distinctive shape, City of London, London, England, United Kingdom, Europe

A modern, tall building with a distinctive curved facade, featuring numerous windows and balconies, set against a bright blue sky with scattered clouds in Liverpool, UK.

A modern building with a distinctive curved, glass and metal facade, sits on a green slope beside a calm body of water in Newcastle upon Tyne, UK.

A modern, curved building with a distinctive tiled facade of silver, white, and blue panels, reflecting the cloudy sky in Newcastle upon Tyne, UK.

The spiral mosque of the Kassem Darwish Fakhroo Islamic Centre in Doha, Doha, Qatar, Middle East

Angkor Wat Temple, UNESCO World Heritage Site, at night, lit for a special light show, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

The restored Souq Waqif with mud rendered shops and exposed timber beams, Doha, Qatar, Middle East

Leh, Ladakh region, state of Jammu and Kashmir, India, Asia

Courtyard, Church of the Nativity and Hrelyo's Tower, Rila Monastery, UNESCO World Heritage Site, nestled in the Rila Mountains, Bulgaria, Europe

Colourful shops and buildings with Tokyo Skytree in background, Asakusa, Taito City, Tokyo, Honshu, Japan

Cube houses, yellow cube shaped architecture, and Maastower, Rotterdam, The Netherlands, Europe

Angkor Wat Temple, UNESCO World Heritage Site, at night, lit for a special light show, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Angkor Wat Temple, UNESCO World Heritage Site, at night, lit for a special light show, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Distinctive historic colourful arcaded houses and Onyar River, Girona, Girona Province, Catalonia, Spain, Europe

Cathedral towers above distinctive historic colourful arcaded houses and Onyar River, Girona, Girona Province, Catalonia, Spain, Europe

View of Piazza San Carlo, a central square renowned for its Baroque architecture, distinctive landmarks and surrounding 1638-designed porticos, Turin, Piedmont, Italy, Europe

Courtyard, dormitories and Church of the Nativity, Rila Monastery, UNESCO World Heritage Site, nestled in the Rila Mountains, Bulgaria, Europe

Hradek (Little Castle) with distinctive tower, Cesky Krumlov, UNESCO World Heritage Site, Czech Republic, Europe

Distinctive historic colourful arcaded houses and Onyar River, Girona, Girona Province, Catalonia, Spain, Europe

A distinctive old Lindian style building and sign for a bar in Lindos, Rhodes, Dodecanese Islands, Greek Islands, Greece, Europe

Penedo, settled by Finnish immigrants in 1929, the touristic town maintains its distinctive heritage, Rio de Janeiro State, Brazil, South America

Penedo, settled by Finnish immigrants in 1929, the touristic town maintains its distinctive heritage, Rio de Janeiro State, Brazil, South America

Chiltern Street in Marylebone, with its distinctive red brick buildings, London, England, United Kingdom, Europe

Penedo, settled by Finnish immigrants in 1929, the touristic town maintains its distinctive heritage, Rio de Janeiro State, Brazil, South America

Chiltern Street in Marylebone, with its distinctive red brick buildings, London, England, United Kingdom, Europe

Traditional Alpujarra architecture in Pampaneira, a small mountain village in the Alpujarras, Granada, Andalusia, Spain

Konboro Mosque Mali Africa

Herd of wild horses graze on the yellow grass. Lagoon Azul is mountain lake near three rocks - torres. The mountain range is covered with eternal snow. The Torres del Paine park in Chile

Motion blur of a London underground train arriving at Camden town station with its distinctive tiled walls and roundel

Log cabins at the entrance to Torres del Paine National Park, Patagonia, Chile, South America

Signpost Cuernos and Chileno, Mirador Las Torres, Torres del Paine National Park, Patagonia, Chile, South America

Mountaineers at the Mirador de las Torres, Torres del Paine National Park, Patagonia, Chile, South America

Aerial view of a single courtyard with an avenue of columnar cypresses (Cupressus sempervirens) and hills near Siena, Tuscany, Italy, Europe

Traditional Batak house, in Indonesian called Rumah Bolon or Jabu, are noted for their distinctive roofs which curve upwards at each end, as a boats hull does and their carving decor

Blue painted wall with various religious pictures around a small window, chapel, church, Agios Isidoros, rocky islet, Gourna Bay, Kokkali, Leros, Dodecanese, Greek Islands, Greece

Scenic sunset view of istanbul's cityscape, featuring the prominent galata tower and a waving turkish flag, creating a patriotic and picturesque scene

Scenic view of the historical wat chaiwatthanaram temple with its towering prangs and serene green lawn under a cloudy sky in ayutthaya, thailand

An impressive aerial view of Neuburg an der Donau, a picturesque town in Bavaria. The Danube meanders through the town and forms a small island surrounded by historic buildings with red roofs. Neuburg Castle, which towers majestically over the town and is a historical landmark, is particularly striking. The town is nestled in beautiful natural surroundings with green forests and expansive fields. Neuburg on the Danube, Bavaria, Germany

View of Trifels Castle and Anebos Castle, mixed forest, Annweiler, Pfläzerwald, Rhineland-Palatinate, Germany

View of Trifels Castle and Anebos Castle, mixed forest, Annweiler, Pfläzerwald, Rhineland-Palatinate, Germany

View over the Palatinate Forest, mixed forest, dawn, fog, Luipoldsturm, Hermansbergdorf, Pfläzerwald, Rhineland-Palatinate, Germany

Meteora in Greece. Meteora is the monasteries on the top of the rock towers. Greece, Meteora

Foehn clouds over the Torres, Torres del Paine National Park, Patagonia, Chile, South America

Rock formations in the American Southwest

Village of mud houses, Nkob, Morocco, North Africa

Village of mud houses, Nkob, Morocco, North Africa

View from the Mirador de las Torres, Torres del Paine National Park, Patagonia, Chile, South America

Torre Guaita or Rocca Guaita, old watch tower, Monte Titano, San Marino Town, San Marino, Europe

Torre Falesia, Seconda Torre, old watch tower, Monte Titano, San Marino, Europe

Thor's Hammer, Bryce Amphitheatre, Bryce Canyon National Park, Utah, USA, North America

Chilehaus, Hamburg, Germany

Torre Guaita or Rocca Guaita, old watchtower, Monte Titano, San Marino city, San Marino, Europe

Opera House and Harbour Bridge, Sydney, New South Wales, Australia

Torre Guaita or Rocca Guaita, old watchtower, Monte Titano, San Marino city, San Marino, Europe

The Erechtheion (or Temple of Athena Polias) with sunburst on the Acropolis of Athens, the ancient citadel located on a rocky outcrop overlooking the City of Athens at twilight, Athens, Greece

The Erechtheion (or Temple of Athena Polias) with sunburst on the Acropolis of Athens, the ancient citadel located on a rocky outcrop overlooking the City of Athens at twilight, Athens, Greece

Architecture at the Acropolis of Athens and a view of the city of Athens at sunset, Athens, Greece