Complex sentence: An equally significant building constructed for the fair was the Galerie des machines, designed by architect Ferdinand Dutert (1845-1906) and engineer Victor Contamin (1840-1893), which was reused at the exposition of 1900 and then destroyed in 1910.
Split into simpler sentences: An equally significant building constructed for the fair was the Galerie des machines, designed by architect Ferdinand Dutert and engineer Victor Contamin. It was reused at the exposition of 1900 and then destroyed in 1910.