Mala Strana Bridge Tower at snow-covered Charles Bridge at twilight in winter, Prague, Bohemia, Czech Republic

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

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

UK, England, London, City of London / Southwark, Tower Bridge reflected in the River Thames at dusk

Krzyztopor Castle in Ujazd, Swietokrzyskie Voivodeship, Poland

Aerial view of Scarpieri Tower and Sesto Dolomites. Bolzano province, South Tyrol, Italy

Spitalgasse street with Plonlein half-timbered building and Siebers Tower, Rothenburg ob der Tauber, Bavaria, Germany

Spitalgasse street with Plonlein half-timbered building and Siebers Tower, Rothenburg ob der Tauber, Bavaria, Germany

Cyclists on Spitalgasse street with Plonlein half-timbered building and Siebers Tower, Rothenburg ob der Tauber, Bavaria, Germany

Italy, Tuscany, Pisa, Piazza dei Miracoli, Leaning tower and Cathedral

Basilica of Saint Mary Major or Basilica di Santa Maria Maggiore, Rome, Lazio, Italy

UAE, Dubai, Marina. Dawn view over apartment blocks in the affluent Dubai Marina neighborhood

UK, Scotland, Argyll. Kilchurn Castle is a ruined 15th C castle built by the Campbells of Glenorchy on the north shore of Loch Awe.

England, London, Tower Bridge with Empty Road at Night

Sunsrise over the Shard and city of London, London, England, UK

Sunsrise over the Shard and city of London, London, England, UK

Peak Tower and skyline at dusk, Hong Kong

Boat going towards Charles Bridge and Church of Saint Francis of Assisi with Old Town Bridge Tower at sunset, Prague, Bohemia, Czech Republic

Charles Bridge and Old Town Bridge Tower at night, Prague, Bohemia, Czech Republic

Charles Bridge with mist at sunrise, Prague, Bohemia, Czech Republic

The Angel sculpture besides the Yarra River. Melbourne CBD, Melbourne, Victoria, Australia

The Squire's Landing Brewery and Sydney Opera House at Campbells Cove, Circular Quay. Sydney Harbour, Sydney, New South Wales, Australia

Henley Reserve, Melbourne Skyline and Yarra River. Melbourne CBD, Melbourne, Victoria, Australia

Krivoklat Castle amidst trees against sky during sunset, Krivoklat, Rakovnik District, Central Bohemian Region, Czech Republic

United Kingdom, England, London, City of London, Southwark. View of Tower Bridge, the Shard and boat docks.

St Pauls Cathedral and city of London, bathing in the afternoon light, London, England, UK

Sunsrise over the Shard and city of London, London, England, UK

Sunrise looking down the river Thames to Tower Bridge, the Shard and city, London, England, UK

Sunrise looking down the river Thames to Tower Bridge, the Shard and city, London, England, UK

Manhattan skyline with the Empire State Building, New York City, USA.

Evening at the old town square with the church of Saint Nicholas, Prague, Czech Republic

Walking down the stairs to Mala Strana district, Prague, Czech Republic

National Gallery and St Martin in the Fields church in Trafalgar Square, London, England

Church, Santa Gertrudis de Fruitera, Ibiza, Balearic Islands, Spain

Torre des Savinar defence tower with Es Vedra island in the background, Ibiza, Balearic Islands, Spain

UK, England, Northumberland, Dunstanburgh Castle, Lilburn Tower

Skyscrapers of Chaoyang business district from Jingshan Park at sunrise, Beijing, China

Skyline of Pudong at sunrise, Shanghai, China

Lotte World Tower and Han River at dusk, Seoul, South Korea

France, Alpes Maritimes, Parc Naturel Regional des Prealpes d'Azur, Le Broc, Mercantour peaks in the background

France, Var, Corniche de l'Esterel, Saint Raphael, Ile d'Or in front of the Cap du Dramont

France, Somme, battlefields of the Somme, Thiepval, Ulster Tower, replica of a tower near Belfast in Northern Ireland, memorial of the 36th British Division of Ulster during the First World War

France, Gers, Auch, stop on El Camino de Santiago, Sainte Marie Cathedral

France, Meurthe et Moselle, Nancy, facade of Notre Dame de l'Annonciation et Saint Sigisbert primatiale cathedral from Stanislas square (former royal square) built by Stanislas Lescynski, king of Pola...

France, Paris, the banks of the Seine river listed as World Heritage, Royal bridge and the Orsay museum

France, Paris, Eiffel Tower and Trocadero Square at the Blue Hour

North Korea, Pyongyang. Paintings within the Sino-Korean Friendship Tower of American soldiers being defeated by North Korean and Chinese armies in the Korean War.

Asia, China, Shaanxi Province, Xian, the historic 14th-Century Bell Tower, constructed in the Ming and Tang dynasties

Manhattan, New York City, USA. Aerial view of the One World Trade Center, 9/11 Memorial and Manhattan skyline at dusk.

Abra boats on Dubai Creek, Dubai, United Arab Emirates

United Arab Emirates, Abu Dhabi, Al Khubeirah district, Etihad Towers seen from the Emirates Palace Hotel

Colombia, Bolivar Department, Cartagena, listed as World heritage by UNESCO, street of the colonial district with the cathedral in the background

Canada, province of Ontario, the city of Toronto, the city and its skyscrapers at sunset from the shores of Lake Ontario

Kuchlbauer Tower, also Hundertwasser Tower by Friedensreich Hundertwasser and Peter Pelican in the beer garden of the Kuchlbauer Brewery, with the chimney of the brewery, Kuchlbauer's World of Beer, A...

Italy, Sardinia, Costa Smeralda, Porto Cervo, Stella Maris Church

St Nicholas Church at dawn, Ghent, Flanders, Belgium

Alanya Harbour and The Red Tower, Alanya, Turkey

Yivli Minaret Mosque, Tekeli Mehmet Pasha Mosque and Clock Tower, Kaleici, Antalya, Turkey

Galata Tower, Beyoglu, Istanbul, Turkey