As Carnival 2015 rolls toward its climax, the big attractions are set to appear: spectacles starting with Babylon, Chaos and Muses on Thursday night and continuing with Hermes and D’Etat on Friday, Iris, Tucks and Endymion on Saturday, Bacchus on Sunday, Orpheus on Monday and the main event — Rex and Zulu in New Orleans — on Fat Tuesday.

At Saturday’s Endymion parade, the crowd will be able to see itself as the new E-TV, or Endymion TV, float rolls past. The float, assembled of 30 LED panels and three video screens, will project images of spectators back to the crowd. It rolls atop a new double float near the end of the parade. Endymion is also promising better-than-ever lights and plumes of “smoke” billowing from floats.

On Monday, superkrewe Orpheus also promises enhanced lighting effects, more smoke and individually lighted and controlled displays.

Gallier Hall has served as the city’s official reviewing stand for Mardi Gras parades for most of the past century and a half, but it will not be available in 2015 due to safety concerns. The mayor will toast krewe royalty from the reviewing stands next to Gallier Hall.

Celebrities set to ride in 2015 include country music superstars Luke Bryan in Endymion and Dierks Bentley in Orpheus. Reigning as Bacchus XLVII is actor John C. Reilly.

This year’s Lundi Gras festivities will offer a new twist as Rex arrives on elegantly restored, vintage railroad cars, rather than via boat.

Several krewes celebrate anniversaries this year, including the Jefferson City Buzzards walking club. The Buzzards will hit the 125-year mark. And the Budweiser Clydesdales will make their 50th appearance in parades this year.