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Real estate search company Trulia has mined the data from its users’ housing searches and made cool-looking maps out of it. In D.C., users who are looking for new places to live outside of D.C. really, really like looking at houses in Bethesda (and Baltimore).

The love is mutual, apparently: Bethesda residents spend a lot of time looking at houses in D.C.:

Maybe they can just trade houses!