In a pan, pour the water, sugar orange juice and zests and heat on medium until the sugar has dissolves. Reduce heat to simmer and cook for 5 minutes.

Add the honey and orange blossom and cook for extra 2 minutes.

Remove from heat and allow to completely cool.

Preheat oven to 350F.

In a food prosector, place the nuts and process until finely grounded. Place in a large bowl, add the sugar and cinnamon and mix to combine.

Using a pastry brush, brush the bottom of 13" x 9" pan with the melted butter. Gently line a single sheet of fillo in the pan and brush with the melted butter. 

Repeat for extra 12 sheets of fillo. Evenly sprinkle half the nuts mixture.

Brush a sheet of fillo and line to on the nuts butter side down. Brush it again with butter and repeat for 4 more fillo sheets.

Sprinkle the remaining of the nuts mixture and repeat the above step for extra 12 more fillo sheets.

Brush the last sheet of fillo with butter, and using a sharp knife, cute the Baklava into 12 squares and cut each square into 2 triangles. 

Bake the Baklava for 30 minutes. Reduce the heat to 300F and bake for 30 more minutes.

Right when taking the Baklava out of the oven, pour the cooled syrup on top. Allow to completely cooled before serving.