Mannheimer Swartling, Stockholm, Sweden

Jämtlands Grey Limestone, a Swedish national favourite, is quarried from the hills around Östersund and Brunflo where the limestone was formed over 465 million years ago and it is reputedly both the oldest and the hardest limestone in Europe.

Architects specify this limestone when their customers are seeking an attractive yet hard wearing limestone which also happens to be an unshakeable symbol of Swedish national identity.

Whether it is a smart lawyers office in central Stockholm or a summer house on the outer reaches of the archipelago, Jämtlands Grey limestone adds an understated touch of quality and reliability.

It is also possible to see this beautiful limestone together with Öland Grey limestone tiles at Arlanda airport.