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.
Click here . Hear ghost stories told by the mansion's residents and Denver's ghost guru. 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.