The Croke-Patterson Mansion Tim Skillern / RockyMountainNews.com An afternoon view of the red sandstone castle at the corner of 11th Avenue and Pennsylvania Street looks imposing enough during the day. Nights are even creepier. Navigate yourself through the dark corridors of the Patterson Mansion using our 360° technology. Click here. Hear ghost stories told by the mansion's residents and Denver's ghost guru. Click here If you missed the ghost cam, you can still check out the best submissions from our detectives here. Are you top ghoul at your ghost school? Take our Halloween quiz. Click here.

Those who inhabit Denver's spookiest mansion say they're somewhat accustomed to the creaks in the floorboards, the thumpings from the walls and the creepy chills that rise from the cellar's twisting and turning paths. But every now and then you can see it on their faces... they're still scared. There's good reason:

Legend recounts the tales of suicidal guard dogs, lonely mothers, swinging parties that crash the house one moment and fall silent the next. Secret chambers supposedly entombed the body of a girl, while unexplanable drafts emanate from the mansion's depths.

Vicious Doberman pinschers, a grieving mother and a drifting apparition are among the ghosts that haunt Capitol Hill's Croke-Patterson-Campell Mansion today. Completed in 1891, the towering sandstone castle has driven many of its occupants from the building's four floors and 15,000 square feet for mysterious reasons.

Most frighteningly of all, Thomas Patterson, the former owner of the Denver Rocky Mountain News, haunts the courtyard between the castle and the carriage house, bemoaning the undiscovered secrets and scandals that lurk in Denver's seamy underbelly.

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