What you expect from Sweden is space, water and uplifting design, but you don’t always get it.  In the country’s  gloriously green, fresh-air capital,  it can be surprisingly hard to find the serenity which is Scandinavia’s secret weapon in an increasingly intense and crowded world. Enter the Skeppsholmen Hotel, which offers peace, quiet and high design just a 10-minute stroll from Stockholm’s bustling city centre.   In a city full of smart places to stay, it’s the only one of its calibre which is also a secret island hideaway.