Denver Press Club
"A couple of spirits have been seen here, one of which who is very friendly also likes to visit the neighboring Colorado Press Association. The other ghost, however, is said to be very eerie and is most often known to lurk about the dingy boiler room in the basement."
Littleton Town Hall Arts Center
"Built in the 1920's, this building once housed city offices, a jail out back, and the volunteer department. Located in the Denver suburb of Littleton, there have been several reports of friendly spirits heard laughing and playing music late into the night. Staff also report that objects are often moved about and desks rearranged by unseen hands."
The Brown Palace Hotel
"This century old luxury hotel is said to host a number of spirits in its historic rooms and hallways. The ghost of an old railroad ticket manager walks directly into a wall, a baby is heard crying in the basement, an ethereal waiter rides the service elevator, and a long dead string quartet has been known to practice their music here."