Number 1 City in the world is Las Vegas, Nv with 92,000 (Down 9,000 from 2008) weddings. Number 2 wedding city in the world is Istanbul Turkey with 92,000 for the year. Number 3 City (2 in the US) is Gatlinburg, Tn with 42,000 weddings. Number 4 City (3rd in the US) is New Orleans, La with 36,545 Marriages in 2002. Due to hurricane Katrina New Orleans will not match this number for a few years..