It's a particularly good time to be a luxury homeowner in San Francisco.
The Californian city tops Knight Frank's Prime Global Cities Index of prices for high-end real estate around the world.
Tech industry money has been pouring into San Francisco, helping push up the median asking price to more than $1 million.
The list features other cities with strong tech sectors, as well as emerging markets where new wealth is blossoming, and foreign investment hotspots.
There are some notable absences. London prices were held back by political uncertainty, while luxury condos in New York got cheaper.