Austria, Salzburg, Salzburg Cathedral with the Residenzbrunnen or Residenz Fountain.

Austria, Salzburg, General view of the city and river Salzach from the Festung Hohensalzburg Fortress above the city with hills in the background.

USA, New York City, Manhattan, New York Fire Department Memorial Wall, Engine 10, Ladder 10, World Trade Center.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

USA, New York City, Manhattan, Four World Trade Center also known as Tower 4 and 150 Greenwich Street.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

USA, New York City, Manhattan, One of the two waterfalls at National September 11 Memorial, World Trade Center.

Uzbekistan, Khiva, Decorative ceiling of the Mosque in Kunya Ark, also known as Kohna Ark, Ichan Kala.

Poland, Krakow, Rynek Glowny or Main Market Square, St Mary's Church also known as St Marys Basilica, with row of houses on the squares east side.