The ring castle had an inner diameter of 240 metres.

The building has a circular form, with a diameter of 112.5 metres.

The structures themselves had internal diameters of between three and eight metres.

The most impressive part is a tower with a diameter of more than ten metres.

Er so the the flower bed has a diameter of six metres.

It has a diameter of 2 metres and was built in 1970.

It is 135 meters tall and has a diameter of 120 metres.

These were laid in enormous rings with a diameter of three metres.

They once formed a circle with a diameter of about 14 metres.

The almost perfectly circular lake has a diameter of 100 metres.