Complex sentence: Kivik is also home to the the bronze-age tomb-the 3000 years old "King's Grave" which is the largest circular burial site in Sweden, measuring 75 metres in diameter.
Split into simpler sentences: Kivik is also home to the the bronze-age tomb-the 3000 years old "King's Grave". It is the largest circular burial site in Sweden, measuring 75 metres in diameter.