Kista, Sweden

Kista may be Sweden's high-tech hub, but it's no Silicon Valley. With the largest ICT cluster in Europe, the area boasts 100,000 Ericsson employees and accounts for a significant portion of the country's economy. However, the reality on the ground is less than ideal - nearly half of inhabitants report feeling unsafe due to rising crime rates, and over a third of office space now lies vacant as major employers like IBM and Ericsson depart. The neighborhood has seen a spate of violent incidents, from robberies to shootings, leading the Swedish Police Authority to classify it as a vulnerable area in the 2020s. While Kista may offer ample green space, with 94 square meters per person, the persistent safety concerns make this high-tech hub a poor choice for anyone seeking a peaceful, secure lifestyle.