(Photo: James Edstrom)

Blood Manor
542 W. 27th St., nr. Tenth Ave.; 877-340-3002
The Heart Chamber spews 37 gallons of blood per night, but to get there, you'll have to pass through the Slithering Snake Pit and the Horridor.
• Dates: Oct. 5–28, Thurs.–Sun.; Oct. 29–31, Mon.–Wed., 7.30 p.m.–1 a.m.
• Price: $20–$30; $40–$45 "RIP" tickets bypass the line altogether.

Nightmare
Clemente Soto Velez Cultural Center, 107 Suffolk St., nr. Rivington St.; 212-868-4444
Little old zombie ladies and flesh-eating monsters? Creative director Timothy Haskell has re-created some creepy ghost stories in more than twenty eerie rooms.
• Dates: Sept. 28–Nov. 3, every day except Oct 1, 2, 8, 9, 15, and 22; 6 p.m.–10 p.m.
• Price: $25 for entry to haunted house; $30 for entry to haunted house and maze; $50 for no-wait tickets.

Trapped in Purgatory
Greenside Up Nursery, 5050 Haylen Blvd., Staten Island; 718-967-5039
In this ode to Dante's nine circles of hell, tortured souls share the despair of limbo with vampires and cockroaches.
• Dates: Oct. 5–31, Fri.–Sat. 7.30–11 p.m.; Sun. 6 p.m.–10 p.m.
• Price: $5 for kids under 12; $7 for adults during the day, $10 at night.

The Halloween Haunted House
Queens County Farm Museum, 73-50 Little Neck Pkwy., nr. 74th Ave., Bellerose; 718-347-3276
This kid-friendly haunted house dating back to 1772 has the attendant coterie of ghoulish characters minus the fangs.
• Dates: Oct. 27, 28, and 31; 4 p.m.–7 p.m.
• Price: $4