Link to downloadable images from Gapminder's Dollar Street dataset:
This is basically a copy of the images from the Dollar Street webpage, so the same Creative Commons license 4.0 applies.
To quote from Dollar Street's About page:
Imagine the world as a street ordered by income. Everyone lives somewhere on the street. The poorest lives to the left and the richest to the right. Everybody else live somewhere in between. Welcome to visit all homes on Dollar Street!
Dollar Street was invented by Anna Rosling Rönnlund at Gapminder. For 15 years she spent her workdays making global public data easier to understand and use. Over time her frustration grew: carefully selecting data to present it in colorful and moving charts made overall global trends and patterns easier to understand. But it did not make everyday life on different income levels understandable. Especially not in places far from home. “People in other cultures are often portrayed as scary or exotic.” Anna explains: “This has to change. We want to show how people really live. It seemed natural to use photos as data so people can see for themselves what life looks like on different income levels. Dollar Street lets you visit many, many homes all over the world. Without travelling.”