Complex sentence: The main hotel in Tokyo opened in 1964, to coincide with the Tokyo Olympics of that year, and is known for the revolving restaurant atop the hotel, along with the New Otani Art Museum located on its sixth floor.
Split into simpler sentences: The main hotel in Tokyo opened in 1964, to coincide with the Tokyo Olympics of that year. It is known for its revolving restaurant atop the hotel and along with the New Otani Art Museum located on its sixth floor.