Hereby some pictures taken in some cities that I have visited:

United States: Los Angeles, Las Vegas, San Francisco, ... (link of pictures)

Canada: Montréal, Ottawa (link of pictures)

Switzerland:Lausanne, Geneva, Bern, Gruyères, Basel, ... (link of pictures)

United Kingdom: London (link of pictures)

France: Nice, Cannes, Paris, Grenoble, Montpellier, ... (link of pictures)

Russia: Saint Petersburg (link of pictures)

Italy: Venice (link of pictures)

Morocco: Marrakech, Tanger, Chefchaouen, ... (link of pictures)