Two giants of travel and world heritage teamed up this Thursday, as UNESCO and online community site TripAdvisor launched a partnership to help save some of the world's greatest cultural sites. The pairing will see TripAdvisor pledge an initial $1.5million (£919,000) towards UNESCO's ambitious World Heritage Centre, from which the UN's culture wing will observe and preserve some 890 sites on its World Heritage List. These include some of the planet's most celebrated ancient places, such as Stonehenge, the Theban Necropolis and Chichen Itza.
