Americans are flocking to Spain and buying pricey homes. New 'digital nomad visas' could make it even more popular.

• The number of Americans living and buying real estate in Spain has jumped in the last few years.
• Americans are also buying some of the most expensive property in the country. 
• A "digital nomad visa" launched this year could encourage even more Americans to move to Spain.

A surge of Americans have moved to Spain over the last few years and are buying some of the country's most expensive property.