Travel Channel president Laureen Ong today unveiled a trio of new projects along with the renewal of four primetime series and additional episodes for Airport 24/7: Miami, extending the show through August. In a reteam with Ghost Adventures‘ Zak Bagans, Travel Channel has ordered Netherworld, a one-hour special that follows Bagans down into the Paris catacombs. The network has also greenlit new series Sturgis: 24/7 which will focus on South Dakota’s 73rd Annual Sturgis Motorcycle Rally. Further, the net is developing Celebrity Layover, a new series to feature famous folk giving a local perspective on a destination they know and love. Along with the new series, Travel Channel has renewed four shows. Bizarre Foods America and The Dead Files are each getting a fifth season; Toy Hunter and Trip Flip are moving to their third seasons and Airport 24/7: Miami is getting an additional six episodes for its current second season.