- history.co.uk articles/houska-castle-gateway-to-…Built atop a rocky cliff in the 13th century, possibly on the orders of Ottakar II of Bohemia, Houska Castle has baffled people for hundreds of years.
- saintfacetious.com post/2017/05/09/castle-houska-…Rumor has it that demons once roamed these woods. Since then, there's been Swedes, Nazis, and witches.Now there's a church and a museum in Castle Houska.
- atlasobscura.com places/houska-castleDiscover Houska Castle in Blatce, Czechia: Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.
- connollycove.com houska-castle/Houska Castle was built in the late 13th century as an administration center and its ownership passed from one member of the aristocracy to another over time.
- morbidkuriosity.com houska-castle/The legend of the Houska castle has been making rounds since the Middle Ages. The tales of this wraithlike fortress are the basis of many paranormal stories.
- en.advisor.travel poi/Houska-Castle-10469Houska Castle was featured on an episode of Ghost Hunters International which aired on SyFy on July 22, 2009. ... Houska castle is built in the early Gothic style.
- discoveryuk.com mysteries/the-real-truth-behind-…Was Houska Castle placed there to guard a gateway into hell? ... The duke took action. And that action was to build Houska Castle directly atop the pit.
- thebrainchamber.com houska-castle/Constructed in the late 13th century during Ottokar II of Bohemia’s reign, Houska Castle started as a royal administrative hub. ... The Folklore of Houska Castle.
- anomalien.com houska-castle-haunted-fortress-that…Houska Castle, known locally as the Gates to Hell in the Czech Republic it is thought to be one of the most haunted locations in the world.
- castlesworldwide.net castles-of-czech-republic/…Ownership / Access: -- Notes: Houska Castle is an early Gothic castle, 47 kilometres (29 mi) north of Prague, in the Czech Republic.