The dome collapsed, killing anyone still remaining on the upper floor.

The dome finally collapsed at 10 a.m. on 15 February.

The caldera was formed when the dome collapsed about 16 million years ago.

But we're in the middle of incorporating those new stones into the lens, and if I leave it the whole dome will collapse.

The dome of the church had collapsed by the 19th century.

Therefore the power had been cut off and the dome had collapsed.

Its first dome collapsed in 1750 for reasons that were never determined.

In 1999 the large dome which towered over the hospital's administration collapsed.

When a doorway on one side was pulled down, the dome finally tipped over, and collapsed.

The dome collapsed from heavy snow in 1971 and was replaced.