What does the word 'blockbuster' mean to you? Obviously, there's the use of the term to describe an expensive and¹ successful film. Then there's the 'blockbuster' bomb. But there's a third meaning I hadn't encountered. Fritinancy explains:

In the 1950s, blockbuster acquired two figurative meanings: the entertainment meaning (1957) and a racial/economic meaning (1959). The entertainment sense gave rise to the name of movie-rental chain Blockbuster [...]

The racial/economic sense is illustrated in this 1967 citation from the British weekly The Spectator:

The 'block-buster' is a figure in American urban life who has yet to emerge in this country. He is a property dealer who by subterfuge introduces black residents into all-white neighbourhoods.²

1. The producers hope. ↩
2. According to Wikipedia, the Specatator citation isn't entirely accurate. A 'block-buster' wasn't some stealthy agent of integration, seeking to quietly introduce minorities into previously segregated neighbourhoods. Quite the opposite: the idea was to encourage false rumours that minorities were moving into the area, so as to depress property prices and persuade residents to move out to a nice, white suburb as quickly as possible. ↩

This Swiss Mountain House, half-submerged into a hillside, looks lovely and cosy. A house worthy of a Hobbit.

[Via Swissmiss]

I've never heard the term 'nail house' before, though as it turns out I have seen photographs of a couple of them.

The house in Changsha, China¹ looks especially surreal, not least because in one of the pictures it looks as if there's another remnant of the original street a couple of hundred yards down the road.

1. The fifth house pictured in the linked article. ↩