The Entrance beach shark tower. The Entrance, Central Coast, New South Wales, Australia

Tower Bridge & The Shard, River Thames, London, England, UK

The Clock Tower, dating back to the 14th century, defends the main gate to the citadel of the medieval old town. Sighisoara, Transylvania. Romania

Piata Sfatului (Council Square) at dusk, with the former Council House, built in 1420, in the middle. Brasov, Transylvania. Romania

Gaeta at sunset. Europe, Italy, Lazio, Latina province, Gaeta

View over Via Santa Maria towards Cathedral and Leaning Tower at dusk, Pisa, Tuscany, Italy

View over Via Santa Maria towards Cathedral and Leaning Tower at sunset, Pisa, Tuscany, Italy

Palazzo Vecchio at dusk, elevated view, Florence, Tuscany, Italy

Cityscape with San Domenico Basilica and Asinelli Tower at sunset, elevated view, Bologna, Emilia-Romagna, Italy

Cityscape with San Domenico Basilica and Asinelli Tower at sunset, elevated view, Bologna, Emilia-Romagna, Italy

Greek Orthodox chapel, Parikia, Paros, Cyclade Islands, Greece

Lotus Tower on Beira Lake at sunrise, Colombo, Sri Lanka

France, Paris, Eiffel Tower, close-up at night

City skyline at dusk. Toronto, Ontario, Canada.

Lifeguard beach hut, Miami beach, Miami, Florida, USA

Tower of Cathédrale Saint-Sacerdos and old houses on Place de la Liberté in late afternoon, Sarlat-la-Canéda, Dordogne Department, Aquitaine, France

England, London, Tower Bridge and Museum Ship HMS Belfast at Sunrise

Neuschwanstein Castle, Fussen, Bayern, Germany

Lucerne, Switzerland. Kapellbrücke (Chapel Bridge) on Reuss river and mount Pilatus in the backdrop

Belem Tower at sunset, Lisbon, Portugal

Belem Tower at sunset, Lisbon, Portugal

Cityscape, Kremlin, Moskva river, Moscow, Russia

Auckland City and Harbour from Mount Eden, Auckland, New Zealand

Asia, Southeast Asia, Vietnam, Southern Vietnam, Ho Chi Minh City, the illuminated skyline of the city reflected in the Saigon river

Garachico, Puerto de la Cruz, Tenerife, Canary Islands, Spain

Aerial view of St Mark's square and San Giorgio Maggiore church, Venice, Italy

Aerial view of St Mark's square at sunrise, Venice, Italy

'The Dying Town', Civita di Bagnoregio, Viterbo district, Lazio, Italy, Europe

Pitigliano, Grosseto, Tuscany, Italy, Europe

Portugal, Distrito de Lisboa, Lisbon, Belem Tower. Girl with hat admiring the view and Tejo river (MR)

Tokyo Skytree and Sumida river, Tokyo, Kanto region, Japan.

Shinjuku, Tokyo, Kanto region, Japan. Illuminated neon signs at dusk and Cocoon Tower in the background.

Tokyo Skytree and the Asahi Breweries headquarters along the Sumida river, Tokyo, Kanto region, Japan. Skyscrapers and the iconic °Asahi Flame° by Philippe Starck.

France, Bourgogne-Franche-Comte, Burgundy, Cote-d'Or, Pernand-Vergelesses.

England, Kent, Canterbury, Canterbury Cathedral, Fan Vaulted Ceiling of Bell Harry Tower

Innovation Tower (designed by Zaha Hadid) of the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

Skyline with KLCC and Petronas towers, Kuala Lumpur, Malaysia

Petronas towers reflected, Kuala Lumpur, Malaysia

View over Wurzburg at sunrise, Bavaria, Germany

Old Main Bridge at dawn, Wurzburg, Bavaria, Germany

Liebfrauenkirche and River Rhine at sunset, Oberwesel, Rhineland-Palatinate, Germany

Vineyards and St Jacobs Church, Rudesheim, Rhineland-Palatinate, Germany

Tall Ship Thalassa passing through the Tower Bridge, London, England

Tall Ship Thalassa passing through the Tower Bridge, London, England

Tower Bridge & Tower of London, London, England, UK

High Rises on Sheikh Zayed Road at twilight, Downtown Dubai, Emirate of Dubai, UAE, Asia

Azerbaijan, Baku, Old City and Flame Towers

Cathedral-Basilica of Our Lady of the Pillar or Catedral-Basilica de Nuestra Senora del Pilar viewed from across the Ebro river, Zaragoza, Aragon, Spain

Greece, Cyclades Islands, Santorini (Thira) (MR)

Usa, New York City, Manhattan, Midtown, Rockefeller Center, Top of the Rock Observatory

Church of Elkomenos Christos and Bell Tower in Platia Dsami Square, Monemvasia, Laconia, The Peloponnese, Greece (MR)

Church of Elkomenos Christos and Bell Tower in Platia Dsami Square, Monemvasia, Laconia, The Peloponnese, Greece (MR)

Europe, Germany, Brandenburg, Berlin, Museum Island, Spree River, baroque style Bode museum by Ernst von Ihne 1904, Unesco site

Europe, Czech Republic, South Bohemia Region, Cesky Krumlov, Unesco site, Cesky Krumlov castle dating back to 1240 built by Witigonen and Rosenberg families