Yes, you read the title right. Some skilled guys over the XDA Developers forum managed to side-load the entire Google Play Services package, including the Play Store, on to a number of Windows 10 Mobile-powered Lumia smartphones.
At first the process wasn't easy, but after a few days it's now much easier to do it by yourself. In case you are interested in doing so, you should visit the XDA thread.
Currently the compatible smartphones include Lumia 435, 635 with 1GB RAM, 730, 820, 830, 920, 925, 928, Icon, 930, and Lumia 1520. Those should run on Windows 10 Mobile.
Note that this may brick your device and void your warranty, so it's recommended to be familiar what exactly you'll be doing.
Last spring Microsoft confirmed Android and iOS app compatibility for Windows 10 Mobile, but it wasn't supposed to be as easy as installing the entire Google framework. But who knows, maybe everyone should be able to install Android (or iOS) apps after some future Microsoft update. Apparently Microsoft is open to anything these days.