Complex sentence: Completed in 1996, it stands 234 metres (768 feet) high and has 54 floors; it is the third-tallest building in Shinjuku and seventh-tallest in Tokyo.
Split into simpler sentences: Completed in 1996, it stands 234 metres (768 feet) high and has 54 floors. The tower is the third-tallest building in Shinjuku and seventh-tallest in Tokyo.