OK! Travel: Holly Madison's Guide to Vegas

After swapping the Playboy Mansion for a suite at Planet Hollywood in Las Vegas over a year ago, Holly Madison, 30, is ready to share her glamorous life in the new E! reality show, Holly’s World, premiering on June 13. “It’s just a lot of craziness, a lot of drama. My group of friends are really fun,” reveals Holly, who says fans can also expect appearances from her former Girls Next Door co-stars Kendra Wilkinson Baskett and Bridget Marquardt. “We’re super close,” she says. “I just did a road trip with Bridget, and Kendra came to visit.” After becoming an unofficial Las Vegas tour guide for her celebrity visitors, Holly has also decided to put her Sin City expertise to good use. “My favorite thing to do is explore the city, so I’m writing a travel guide to Las Vegas right now,” says the former Playmate. “I’m putting something together for people more my age group who want to visit Vegas and learn a little bit more about it.” If you can't wait until fall for Holly's book to hit stores, here's a sneak peek at six of her favorite places to hit up when you're in town.