The fan zones are open, the stadiums are ready and the biggest World Cup in history is officially underway in the US, Mexico and Canada. Seven matchs are planned in Houston, Texas. The host city expects to attract around half a million visitors and an economic windfall of $1.5 billion. Yet some hotels remain half empty and many fans complain that soaring ticket prices have made the tournament unaffordable. FRANCE 24's Pierrick Leurent and Wassim Cornet report.