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.

Poland, Krakow, Wawel Hill, Wawel Castle, View of Wawel Cathedral and Wawel Castle from The Sandomierska Tower.

Poland, Krakow, Wawel Hill, Wawel Castle, View of an artillery tower from The Sandomierska Tower.

Poland, Krakow, Wawel Hill, Wawel Castle, The Sandomierska Tower.

Ireland, County Carlow, Duckett's Grove, ruins of the 18th 19th and early 20th century home of the Duckett family.

Ireland, County Carlow, Duckett's Grove, ruins of the 18th 19th and early 20th century home of the Duckett family.