Complex sentence: The 1855 building was mainly designed by the architect Jean-Marie-Victor Viel and the engineer Alexis Barrault, and finally destroyed in 1897 to make way for the Grand Palais of the World Fair in 1900.
Split into simpler sentences: The 1855 building was mainly designed by the architect Jean-Marie-Victor Viel and the engineer Alexis Barrault. It was destroyed in 1897 to make way for the Grand Palais of the World Fair in 1900.