Sir Simon Schama, Howard Jacobson and Natasha Kaplinsky among supporters of campaign to protect Jewish heritage.
One of the first buildings in line for restoration is the Great Synagogue in Slonim, Belarus, built in the 1640s. Before the second world war, 17,000 Jews lived in Slonim, more than two-thirds of the local population. An estimated 200 survived.
The synagogue, a baroque building overlooking the marketplace, was used as a warehouse after the war but has been abandoned for 18 years. It has been vandalised and is in danger of collapse, but some of the interior paintings and carvings are intact.