Where was In the Mouth of Madness (1994) filmed?

5 locations on the HorrorMeet Atlas.

• Cathedral of the Transfiguration, Markham

  The Byzantine-style Slovak cathedral, with its tall bell tower, is the black church of Hobb's End. The building still stands in Markham's Cathedraltown but has been closed and deconsecrated.

• West Montrose Covered Bridge, Ontario

  Ontario's last surviving covered bridge, built in 1881, is the crossing Trent and Linda pass through on the night ride into Hobb's End. It is still open to one lane of traffic over the Grand River.

• The Unionville Arms, 189 Main Street Unionville

  This pub on Unionville's heritage main street is the Hobb's End bar exterior. It is still a working pub and the street's nineteenth-century frontages are largely intact.

• R.C. Harris Water Treatment Plant, Toronto

  The Art Deco waterworks on the Scarborough bluffs plays the exterior of the mental hospital where John Trent is locked up. It is a working treatment plant and the grounds are open as public parkland.

• Eglinton Theatre, 400 Eglinton Avenue West

  The 1936 Art Deco cinema is where Trent sits laughing at the film of his own story in the final scene. It closed as a movie house in 2002 and is now the Eglinton Grand event venue.