Genk, Belgium

With a population of just 66,110, Genk is a far cry from the bustling metropolises that many expats dream of. Once a thriving coal mining town, this Flemish city has had to reinvent itself after the industry collapsed, and the transition has been anything but smooth. The bureaucracy is a persistent headache, and newcomers will have to navigate a complex web of paperwork and regulations.

However, Genk does have its charms. The city's green spaces and impressive open-air museum offer a welcome respite from the industrial landscape. And for those drawn to the creative arts, the C-Mine development has transformed an old coal mine into a hub of innovation and entrepreneurship.

In the end, Genk is a city that requires a certain level of grit and determination. It's not for the faint of heart, but those willing to embrace the challenges just might find a hidden gem.