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It looks like a portal to another dimension crafted from alien technology to bridge yawning chasms across time and space.

In reality, it's a fruit and vegetable market.

Either way, it's unlikely that anyone could fail to be excited by the prospect of loading up on groceries at Markthal, a combined food hall and housing project that opened earlier this month in the Dutch port city of Rotterdam.

The development, already feted by architecture critics, houses 100 market stalls beneath a gigantic, brightly decorated archway that contains 228 apartments.