Karl Albrecht's House (deceased)

Karl Albrecht, who died on July 16, 2014, was the co-founder and co-owner of Aldi, one of the world's largest grocery store chains. At the time of his death, Forbes ranked him as the richest German, worth an estimated $25.9 billion.

Albrecht lived in this relatively modest home for nearly 60 years, and died here at the age of 94. He and his brother, Aldi co-founder Theo who died in 2010, were generally regarded as two of the world's most reclusive business tycoons.