A haunted building is born from a past tragedy, be it a grisly murder, a mysterious disappearance, or a long-forgotten bologna sandwich buried beneath the floorboards. Sign on for a spooky tour of eerily cursed residences with today’s Groupon to Bulldog Tours. Choose between the following options:

• For $18, you get a haunted walking tour for two (up to a $36 value).
• For $33, you get a haunted walking tour for four (up to a $72 value).
  
  

Bulldog Tours’ fully licensed tour guides share in-depth knowledge of the Holy City’s murky underbelly on a variety of haunted tours, which earned the business an award from Charleston City Paper for Best Tour Company in Charleston two years in a row. Guests can peek into Charleston’s shady past with the Dark Side of Charleston tour, an 18-and-older uncensored exploration of the century-old stories of corruption, brothels, crime, and scandal in high society.

Ghost & Graveyard tours allow a glimpse into the dark corners, carved headstones, and chilling pasts of long-dead houseplants, and the Haunted Jail tour tiptoes guests through the cells in which famous 19th-century pirates and Civil War prisoners died. A pre–Revolutionary War dungeon opens up to admit historical fright seekers in the Ghost & Dungeon tour as guides spin chilling tales of the resident ghosts, local haunted houses, and lingering traces of voodoo that haunt the South Carolina city. Acting in tandem with the annual bake sales of Charleston’s resident ghosts, a portion of every ticket sale aids in the restoration of the tours’ historical buildings and sites.

Though Bulldog Tours sometimes features a discounted price online, this Groupon still offers the best deal available.