If you can't afford one of the classic modernist or midcentury modern properties featured over at WowHaus, you can always get yourself one in miniature. Like one of these Miniio modernist dolls houses and furniture.
I'm honestly not sure if these are aimed at adults or children. The term 'dolls house' perhaps leans towards kids, but the detail of both the houses and furniture on offer here suggests otherwise. Lets say, for arguments sake, it appeals to both.
Inspired by midcentury architecture and interior design we would presume, you can choose from three houses and various furniture sets, all constructed from the likes of oak and plywood and all hand finished. There's a real eye for detail at work here.
Prices vary, but as a guide, furniture sets start at around 19 Euros and the houses start at 199 Euros online. Shipping is worldwide.