According to a report of the French senate, 2.800 churches across the country, many of them centuries old, will be demolished as restoration costs exceed the cost of demolitions over the next years. This church, Église Saint-Jacques d'Abbeville, a Neo-Gothic masterpiece in Abbeville, Nord-Pas-de-Calais-Picardie dating back to 1868, was demolished for a total cost of 350,000€ in 2013. The reasoning: It was much cheaper to demolish it than it would cost to restore.
Mosque on the other hand, flourish. The Grand Mosque of Paris recently got a modern, fully retractable Roof, as it is usually only found in football stadiums and hundreds of new Mosques are built every year for the hundreds of thousands of new Muslims born or immigrating into French society, often with taxpayer money.