Complex sentence: The Optimo store has been gone from the Eltingville station since the 1990s, allegedly due to a fire, although two fluted, Greek-style columns from the store remain on the site as a reminder of the store.
Split into simpler sentences: The Optimo store has been gone from the Eltingville station since the 1990s, allegedly due to a fire. Although two fluted, Greek-style columns from the store remain on the site, as a reminder of the store.