Decades: 590s - 600s - 610s - 620s - 630s - 640s - 650s - 660s - 670s - 680s - 690s
Years: 640 641 642 643 644 645 646 647 648 649 650
... has a total area of 20.0 km² (7.7 mi²). 11.4 km² (4.4 mi²) of it is land and 8.6 km² (3.3 mi²) of it is water. The total area is 42.82% ...