Because of unstable foundations and the whole hill, enhancement walls were built in the 17th century.

The church has a squat tower and large buttress, built because of its unstable foundations.

Not even a sprinkling of my blood would be of any benefit to the unstable foundations of your work.

The school became infamous in the authority's investigative reports as the "sinking school," after millions were spent fixing an unstable foundation and other problems.

These are regarded by many scholars as hypothesis only, and built on an unstable foundation and what can only be conjecture.

It suggests that improved relations between Washington and Beijing have rested on a dangerously unstable foundation.

Plans were made to demolish the building, which had an unstable foundation that was estimated to cost an 5 million guilders to restore.

The building was partially demolished in 2002 following the collapse of an adjacent tenement due to unstable foundations.

Too often in the past we ended up with wealth creation which was built on unstable foundations.

However, the new Republic was built on unstable foundations.