I have visited Highroyds on several occasions now and every time found something new and interesting to see.
some info
Highroyds was designed by J Vickers- Edwards and opened in 1888 closed in 2003, was originally called the West Riding Pauper Lunatic asylum. It is currently under development into housing with manyof the original buildings being converted rather than demolished. The hospital was used as the main set in the film Asylum, showing many of the original features, the gated corridor was in fact part of the set for this film and not an original feature of the Alylum.
Highroyds is a truly magnificent building which was a real joy to see. Recently there have been many thefts of lead from the roof resulting in the building becoming waterlogged in places. The mosaic floors are something else to see along with the beautiful stained glass windows. The clock tower with its four clock faces remains intact and hopefully will do so.

Blackburn Royal Infirmary lays awaiting redevelopment. It was opened in 1865 and closed in 2006. This is a stunning building with many original features, my favourite being the war memorial dome with its beautiful blue and white arches and carved railings on the viewing balcony. It was an unusual visit with water pouring in and electricity still on in places.

Whittingham hospital is truly my favourite asylum, I have visited through every season and everytime i find it astonishing and beautiful, although now it is very derelict with roofs fallen in and countless amounts of vandalism and theft it still remains an awesome site.
Whittingham, formally known as the fourth County Lunatic Asylum, was opened in 1869 and closed in the mid 1990's various parts of the hospital have now been demolished and what remains lies awaiting the bulldozers. In the early 2000's I was fortunate enough to see the magnificent main hall in its former working glory hung with the christmas decorations which now still hang a sad reminder of past times. Whittingham was the centre of controversy when in the late 1960's it came to light that there had been many complaints of patient abuse, this resulted in the Whittingham Enquiry with a thorough investigation of the allegations of mistreatment being undertaken. Resluting changes in the mental health act meant that patient numbers were on the recline and eventually Whittingham once one of the largest in Europe closed her doors for good.
Now awaiting much more demolition with only it seems a miniscule amount of the original buildings being saved for conversion. Whittingham is a sad yet beautiful and tranquil place which i will be sad to see go.

Highroyds mortuary has claim to one of the most amazing slabs i have seen, it sits on one pedestal and is unusual in so much that it rotates on this. It is made from solid marble and situated in a tranquil curved room with high beamed roof. The mortuary fridges remain in the building although only the outer casing is left.

Eastmoor secure unit is possibly one of the most disturbing places i have been, whether it was because of the childrens clothes and toys left in the building or just the darkness of the whole place I do not know. The complex is centered around a quadrangle where many workshops, kitchens and the swimming pool branch off from. In the grounds is a chapel which i beleive was latest used as a gym. Some of the buildings have suffered fire damage yet there are still some interesting things to see, including the former dentists with its equipment still intact.
some info here found by BenWRX
Originaly named the Leeds Reformatory For Boys, first certified in 1857 to hold up to 150 boys it would have been one of the places you would hope you didnt end up.. People think asylum history is grim, at least they weren't shipping kids out to the colonies!

Reformatories and Industrial Schools
In 1836, on the Isle of Wight, the first reformatory was established in England. Parkhurst was intended to train boys, who were under the sentence of transportation, for two to three years before their removal from the country. The Philanthropic Society established Redhill Reformatory in 1849 and, soon others followed. However, it was not until 1854 that the British Government finally passed legislation to assist and accredit these institutions.

A child, under 14 years of age, could be sent to an Industrial School for begging, wandering, consorting with thieves or prostitutes or because the parents deemed him/her uncontrollable. If a child was found gulity of a more serious offence or had been before the courts previously he/she was usually sent to a Reformatory School. Sometimes these institutions were used as both Industrial and Reformatory School, for example Feltham. Both institutions gave basic education to the inmates and taught them a trade such as shoemaking, tailoring, wood chopping, carpentry and farming, for the boys and, cookery, laundry and house chores for the girls.

A British government report in 1884 stated that some 2,108 boys and 133 girls had already emigrated to the colonies from institutions in England, Scotland and Ireland. These children came alone or with organizations such as Annie Macpherson's or Maria Rye's. But, in 1891 British legislation made it more difficult to emigrate the children and by the early 1900s it had all but ceased.

In more modern times and with many new extentions and additions it became the East Moor Approved School/Secure Unit.

Visited here as a flyer on the way back from London, it was a surprisingly interesting place although not much remains. One of the rooms was full of ceramic unusual shaped things which i was informed were off electricity pylons.
north weald redoubt was part of the London Defense Scheme, built between 1889 and 1903, its main purpose was storage of guns, ammunition and other equipment. In the early 1920's the site was purchased by marconi who then set up the Ongar Radio Station, this was considered a site of such improtance that in workd war II special vulnerable point troops were stationed there.