The Underground speakeasy and distillery inside the Mob Museum has Halloween-themed cocktails all October on Monday through Wednesday from noon to 10 p.m. and Thursday through Sunday from noon to midnight. The $12 cocktails include Witch’s Brew with gin, Chartreuse, absinthe, citrus, and basil, while a Murder of Crows is a spine-chilling take on a classic Savoy Cocktail Book concoction with whisky, citrus, amaro, and grenadine. Then on October 30 from 8 p.m. to midnight, The Underground hosts a costume contest (with a 1920s vibe) with spooky-themed cocktails with live jazz music setting the scene. Festivities include live music by The Gatsby Gang at 8 p.m., $12 Halloween-themed drink specials throughout the night, and a costume contest with prizes at 9 p.m. Admission is free with the secret password, “Heebie-Jeebies.”

Lucky Day Tequila & Mezcal Bar offers La Catrina with 21 Seeds Hibiscus and grapefruit-infused tequila, sour mix, hibiscus grenadine, Peychauds Bitters, and soda.

Eureka! has two spooky dishes for the Halloween season. Scary Hot Fries come tossed with ghost pepper spice blend, topped with cheeses, bacon, and chipotle aioli. Chasing Ghosts features Del Maguey Mezcal, coconut milk, orgeat almond syrup, and ghost pepper tincture. Both are available through November 2.

Eat and drink and take part in Halloween-themed activities such as pumpkin painting at Twisted Pumpkin, Tivoli Village’s newest seasonal pop-up bar featuring Calavera Cantina. Children are also invited to enjoy the Halloween festivities before 8 p.m. when the venue transforms to an adult-only bar. Twisted Pumpkin Pop-Up Bar at Tivoli Village runs through Tuesday, November 2, with 90-minute timed entry slots are available from 4:30 to 11 p.m. Tuesdays through Saturdays as well as 1 p.m. to 9:30 p.m. on Sundays. Admission to the bar is $5, a single ticket including admission for one plus a 90-minute pumpkin painting activity is $15 and group packages and VIP seating are also available. To purchase tickets, visit vegaspopupbar.com.

Fergusons Downtown has plenty of Halloween activities for the family, starting on Wednesday, October 27, from 6 to 8 p.m. at Tofu Tees with a spooky candy hunt, costume contest, and different games and activities for all. Then, on October 31, Future Makers takes over the Rooftop Deck with seasonal crafts and trick or treating in The Yard and around the shops.

Distill and Remedy’s host their annual Halloween Bashes on Saturday, October 30, at all locations. Goblins and ghouls are invited for a night of fright and fun with live music, costume contests where the winner can win a cash prize, and food and drink specials throughout the evening. The Halloween bashes are free for those 21 years old or older with valid I.D. to attend. Cocktails include the Poison Apple Martini made with Jack Apple, apple pucker, and sour mix, and the Red Rum cocktail made with Bacardi, soda, grenadine, and garnished with Myers Rum-soaked cherries. Both beverages are $6

Piero’s Italian Cuisine has the Witch’s Re-Treat with Calvados Boulard, Mozart pumpkin spice liqueur, Rinse Strega, a scoop of homemade vanilla gelato, pomegranate molasses, lime zest, and a pinch of ground nutmeg all month.

Emporium Arcade Bar at Area15 holds two nights of local craft brews, cocktails, and classic arcade games on Saturday, October 30, and Sunday, October 31. The October 30 event features This Is Halloween with DJ MelSF and a costume contest offering cash prizes. Then on October 31, the bar hosts Halloweemo, an emo Halloween party featuring DJ Mike Carbonell from 9 p.m. to 1 a.m. This event will also feature a costume contest with cash prizes. Guests may use AREA15’s west entrance and mention Emporium for free entry.

Nightmare on Spring Mountain takes over the Sand Dollar Lounge through November 1, running from 3 p.m. to 4 a.m. daily. The Halloween-themed pop-up promises cocktails such as the Dark Star, a spin on the hot toddy, and Peter Pan, a pumpkin spice slushy; Halloween-themed chocolates and ice cream from Happy Endings Chocolate on Friday nights; and a selfie station.

On October 30 and 31 at 9 p.m., Gilley’s Saloon, Dance Hall & Bar-B-Que at Treasure Island will host special Halloween activities, including a $1,000 costume contest each night, drink specials, and free entry along with live entertainment with country music talent Rebel Heart. Best dressed Halloween costume contenders will have the opportunity to compete for cash prizes, with first place receiving $500 plus $75 bar tab and $25 in Free Slot Play; second place receiving $250 plus $50 bar tab and $25 in Free Slot Play; and third place receiving $100 plus $25 bar tab and $25 in Free Slot Play. Gilley’s will serve drink specials starting at $8, including 16-ounce draft beer, shots, and “you call it” cocktails of Tito’s Handmade Vodka, Jack Daniel’s Tennessee Whiskey or Jack Daniel’s Tennessee Fire. Live music with Rebel Hart starts at 10 p.m. on October 30 and 9 p.m. on October 31 with no cover charge.

The Halloween CrazyShake at Black Tap at the Venetian is a spooky chocolate shake with a vanilla frosted rim with candy corn topped with a spider-web chocolate cupcake, orange and white twisty pop, orange rock candy, whipped cream, orange sprinkles, and a chocolate drizzle for $17.

Off The Strip Bistro & Bar at the Linq Promenade serves Halloween-themed cocktails, including Poison Apple, a fruity blend of Apple Pucker, Captain Morgan, pineapple juice, Sprite, simple syrup, and a red sugar rim; Deadly Night Shade, made with Chambord, Absolut Citron, grenadine, cranberry, and lemon juices; and the Candy Corn cocktail, a sweet and sour beverage with vanilla vodka, pineapple juice, and grenadine.

Virgil’s Bloody Bath Punch at Virgil’s Real Barbecue at the Linq Promenade on October 31 serves four to six people. Bloody Bath Punch is a gallon-sized libation of rum, pineapple, orange, and cranberry juices for $52.

Halloween lovers have three chances to celebrate Halloween at The Front Yard at Ellis Island. On October 27, the venue shows Rocky Horror Picture Show at 5 p.m. and 7 p.m. On Saturday, October 30, the restaurant shows the movie again during a Hocus Pocus Brunch at 10:30 a.m. and 12:30 p.m. On Saturday, October 30, the Front Yard holds Fear Garden in the Beer Garden at 7 p.m. with spooky bites and cocktails, DJs all night, a costume contest, and bottle service at tables. Each experience is free to enter and can be booked through OpenTable. Guests who dress up receive a free cocktail.

Money, Baby! at Virign Hotels shows Halloween movie classics such as Hocus Pocus, The Exorcist, and Halloween 1 & 2 every Thursday night following Thursday Night Football at 9 p.m. Speciality cocktails themed for each movie will be available as well. Hocus Pocus runs on October 14 featuring Witches Brew made with Casamigos Mezcal, butterfly pea simple syrup, and fresh lime juice. The Exorcist on October 21 features Pea Soup made with Hendrick’s Gin, kiwi-infused simple syrup, and fresh lime juice. And on October 28, Halloween I & II run with a cocktail featuring Michael Myers Margarita made with jalapeno-infused Terremana Reposado, fresh lime juice, blood orange agave syrup, and a Tajin rim

Celebrate Dia de los Muertos at China Poblano at the Cosmopolitan of Las Vegas from October 27 through November 2. Options include the tamal verde con pollo for $12 with an heirloom corn tamal filled with slow-cooked chicken, finished with queso fresco, tomatillo, and corn nuts; the taleta con frijoles negros for $9 with a seared blue corn masa stuffed with Oaxaca and Menonita cheeses, refried black beans, and roasted nopales served over salsa de chapulines and finished with a whipped crema fresca de aguacate; pozole verde for $14; the tamal de pina for $13 with a sweet blue corn tamal filled with roasted pineapple, coconut crisp, and cinnamon ice cream; and La Catrina made with Rittenhouse rye, Mr. Black cold brew coffee, lemon, and pumpkin.

STK Steakhouse at the Cosmopolitan of Las Vegas has a Green Goblin cocktail for $21 made with Grey Goose vodka, lime juice, simple syrup, jalapeno, and basil, and the Junk Chalice for $29 with a sundae made with candy, brownies, popcorn, chocolate, caramel, and vanilla ice cream topped with whipped cream and cotton candy. The restaurant also has deejays and entertainment during brunch on Saturday, October 30, and Sunday, October 31, from 11 a.m. to 3 p.m.

Clique Bar & Lounge at the Cosmopolitan of Las Vegas has a costume party on Halloween from 8 to 10 p.m. with a $2,500 prize.

Beauty & Essex at the Cosmopolitan of Las Vegas has the Nightmare on Essex tomahawk special available from October 29-31. For $138, diners can dine on an exclusive four bone Berkshire pork rack served with roasted winter root vegetables, butternut squash puree, smoked cranberry, and port wine jus.

Zuma at the Cosmopolitan of Las Vegas has the Mexican Zombie cocktail inspired by the traditional zombie cocktail. Served in a sugar skull glass, the cocktail is a blend of three different agave spirits — Don Julio Blanco, Reposado, and Mezcal — combined with Velvet Falernum, absinthe, fresh lime, grapefruit, and passion fruit juices. Garnished with a lit cinnamon stick and served in a sugar skull shaped glass, the cocktail has a unique, fruity flavor profile with a smokey and spicy finish.

Marquee Nightclub & Dayclub’s Freaqshow at the Cosmopolitan of Las Vegas brings Alan Walker on Friday, October 29, Afrojack on Saturday, October 20, and DJ Pauly D with a $10,000 costume contest on Sunday, October 31.

Sugar Factory American Brasserie at Harmon Corner has a isweet and spooky milkshake inspired by I Know What You Did Last Summer, the iconic ’90s horror movie turning into an Amazon series. The blend of cookies and cream ice cream and vanilla soft serve is served in a chocolate-dipped mug with candy corn, bloody bones, gummy worms, and Oreo crumbs. It’s topped with whipped cream and an edible clown marshmallow. The milkshake is available now through Friday, November 12, for $25.

Double Helix Wine & Whiskey Lounge at Town Square has the Basic Witch, available all month, with Blackheart Premium Spiced Rum, Fulton’s Harvest Pumpkin Pie Liqueur, barrel-aged bitters, and a pinch of Maldon Sea Salt. The Basic Witch is priced at $14

All Silverton bars offer $13 Halloween specialty cocktails through October 31. Specialty cocktails include I Put A Spell On You, made with Campari, orange vodka, Solerno , and lemon sour topped off with ginger beer; Liquid Ghost, made with elderflower, Grey Goose, and lemon juice; and Witch’s Brew, made with vodka, raspberry liqueur, lime juice, and Sprite.

Lovelady Brewing serves its Hendertucky Horror Show Double Hazy IPA, priced at $7.50 a pint on draft, 16-ounce four-pack for $17, 32-ounce crowler for $13, and 64-ounce growler for $22. The beer features a bewitching combination of pumpkin spice, vanilla, Dark Moon Coffee, Idaho Gem and Cashmere Hops. The Hendertucky Horror Show is also available in 16-ounce cans.