Complex sentence: The tower built in 1885 to a height of 68 feet is in an octagonal shape built with sandstone was painted white at the top in the past but is now painted in cream and red.
Split into simpler sentences: The tower built in 1885 to a height of 68 feet is in an octagonal shape built with sandstone. It was painted white at the top in the past but is now painted in cream and red.