A little-known challenger in the homestay market, ThirdHome, offers more than 11,000 homes across 92 countries with the average value around $2.4 million.

Guests have to own a high-end second home to find listings on the exchange platform, with stays averaging from $500 to $600 a week. Guests offer nights in their own home in exchange for “keys”, nights redeemable at other ThirdHome properties around the world.

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