Detail of the Eiffel Tower, Paris, France showing the structure of the wrought iron lattice framework of the tower against a blue sky
Famous Vintage Architectural Steel Through Arch Harbour Bridge at Sydney, New South Wales, Australia
High angle view of the iconic Sydney Opera House, Sydney, Australia, with its shell-like curving roof on the harbor coastline with the city visible behind
Famous Historic Architectural Structure at Balboa Park San Diego with Palm Trees In Front. Isolated on Blue Sky Background.