11 Dec 2010–8 May 2011 Exhibition X: The Wrong, the Weird, the Ugly and the Unloved
Some parts of a museum’s collection hardly ever go on display. Maybe because the item is too explicit, repulsive, politically incorrect or just plain dull. Exhibition X is an effort to drag these artefacts out into the light of day and question our perception of what is ugly. Be warned: this is not a display for those of a sensitive disposition. Your last chance to see this highly unusual collection.
9.30am–5.30pm Buxton Museum & Art Gallery, Terrace Rd, Buxton, Derbyshire, SK17 6DA. Free

07 Apr-03 May My Big Fat Royal Wedding Pop Up Shop
East End Prints cash in on the Royal Wedding with a temporary shop of irreverent wedding memorabilia. Featuring affordable prints and originals from artists, illustrators and designers.
11am-6pm Maiden Shop, 188 Shoreditch High Street, London E1 6HU

08 Apr Sex, Death, Hell and Superheroes
Hayley Campbell daughter of Eddie Campbell (From Hell illustrator) gives an autobiographical history of horror comics. Then Tim Pilcher, chair of the Comic Book Alliance, discusses the ever present sexual undertones of the superhero genre.
6pm for 7pm The Last Tuesday Society, 11 Mare Street, London E8 8RP. £4.00/£12.00

14 April Emergency Debate: It's got to be nuclear
Intelligence Squared reviews the compelling arguments around nuclear power as the cleanest, safest and most practical power source for Britain. Speakers include Malcolm Grimston, Mark Lynas, Craig Bennett, and Tom Burke.
6pm for 6.45pm Royal Geographical Society,1 Kensington Gore, London SW7 2AR. £25

17 Apr Healing with Herbs, Seventeenth-Century Style: An Afternoon Course
Learn and make plant-based remedies from the 1600s at this lively practical day course. Scholar of historic medicine Julie Wakefield will look at 17th-century astrological herbalism and plant folk magic - from alleged cursing to protection. Price includes, all handouts, samples and potions made (NB. If pregnant, you will not be able to ingest remedies).
1.30pm–5pm Treadwell's Bookshop 33 Store Street, Bloomsbury, London WC1E 7BS. £25.00

18 Apr-01 Oct Time Eating Clock at the Science Museum
The Chronophage clock, designed by Dr John Taylor goes on display at the Science Museum. Measuring 3.3 metres high, with a 1.5 metre gold plated face, created by a series of underwater explosions, the time eating clock showcases a stunning mix of art and technology. It took over two years to make, involved over 100 artists, engineers, scientists, jewellers and calligraphers, and blends traditional time measuring devices with entirely new technology.
10am–6pm The Science Museum, Exhibition Road, South Kensington, London SW7 2DD. Free

20 Apr John Nicholson on John Michell
To commemorate the late, great mystic John Michell's 'death day' of 22 April, historian John Nicholson gives a talk on John Michell's life and work. Lecture includes free locally brewed fine ales dispensed from a colostomy bag.
7pm The Idler Academy, 81 Westbourne Park Rd, London W2 5QH, £15

28 Apr Heretics to Headbangers + Marat/Sade
Fortean Times' own Mark Pilkington introduces an audio-visual history of British occultism, magic and witchcraft from 1880 to 1980, told through popular music. Followed by a screening of Matat/Slade, narrating the persecution and assassination of Jean-Paul Marat, as performed by the inmates of the asylum under the direction of the Marquis de Sade. 
7pm/8.30pm, Institute of Contemporary Arts, The Mall, London, SW1Y 5AH. £5 talk or film/£8 full event 

29 Apr The RILKO AGM/The Robert Cowley Memorial Lecture
The Research into Lost Knowledge Organisation hold their annual general meeting, followed by Shamans, Megaliths and the City Builders: author Lucy Wyatt demonstrates how ancient Egyptian, Phoenician and Mayan rituals were used in planning the first cities in the history of mankind.
6.45pm/7.30pm, 50 Gloucester Place, London W1U 8EA. £7 (£5 members)