Palma sinkhole - Residents had warned of water leak
A jet of water appeared in a building's underground car park a week before the sinkhole.
An unexpected attraction for Balearics Day - the Palma sinkhole
The attraction will be shortlived; the hole is being filled in.
Palma sinkhole reveals remains of 16th century bastion
It was part of the wall built as a defence against attacks by the Ottomans.