Big Ben, one of London's most famous landmarks, is developing a tilt, surveyors have found.

Experts say that the movement, which is now visible to the human eye, was probably caused by underground excavations made since Big Ben was built in 1859.

Members of parliament are discussing how to get the landmark back on the straight and narrow.

Al Jazeera's Simon McGregor-Wood reports from London.

Source: Al Jazeera