The IanVisits guide to free and cheap lectures, trips, heritage events, organised tours and other random miscellany happening around London this weekend.

Top events in London on Saturday

Line of Light is a festival to celebrate the communities that live above the new tunnels of the Northern line extension.
All Day
 
South Lambeth
Line of Light
There will be a display of former bus types that have operated from the garage since 1981 alongside the current fleet.
11am to 4pm
 
Thamesmead
Plumstead Bus Garage 40th anniversay open day
Occasional open day at a railway cutting nature reserve in Forest Hill.
1pm to 4pm
 
Forest Hill
Monthly open day at Dacres Wood Nature Reserve
A public light projection by artist Jenny Holzer will illuminate Tate Modern’s chimney.
5:30pm to 10pm
 
Southwark
COP 26 projection on the Tate Modern chimney
Open fire drinks on the roof of Brunel's Rotherhithe tunnel shaft.
6pm to 10pm
 
Rotherhithe
Midnight Apothecary Halloween Spooktacular
Victorian era Magic Lanterns will shine into the hidden corners of the Pollock's Toy Museum collection over Halloween.
Starts at 6:30pm
 
Tottenham Court Road
Magic Lantern Shows
Delve into regions dark and unexplored beneath the Old Royal Naval College with our ghoulish guides – including a Zombie cocktail to boost your courage.
Starts at 7pm
 
Greenwich
Ghoulish Ghost Tour & Chilling Cocktails
Get an insight into what it’s really like to be an astronaut as Peake reveals the secrets, the science and the everyday wonders of how and why humans journey into space.
7:30pm to :
 
Southwark
Tim Peake: My Journey to Space

Online events / webinars

A walking tour uncovering the saucy secrets and squalor of historic Soho
11am to 12:30pm
 
Sordid Soho - London Walking Tour

Top events in London on Sunday

Dr Helen Frisby surveys the evidence for this fascinating old funerary character and their mysterious rituals in service of the souls of the deceased.
1:30pm to :
 
West Brompton
Hackney’s oldest building will be open to the public.
2pm to 4:30pm
 
Hackney
St Augustine's Tower open day
In their talk Sarah Janes and Pascal Immanuel Michael will shed light on this mystery.
3:30pm to :
 
West Brompton
A screening (in Japanese) of a rare documentary showing the construction process of the first shinkansen railway.
4pm to 5pm
 
Kensington
Screening: Tōkaidō Shinkansen
A tour that explores the Victorian and Edwardian conflict between established religions and alternative spiritual beliefs.
4pm to 5pm
 
Stoke Newington
All Hallows Eve tour of Abney Park Cemetery
A public light projection by artist Jenny Holzer will illuminate Tate Modern’s chimney.
5:30pm to 10pm
 
Southwark
COP 26 projection on the Tate Modern chimney
Delve into regions dark and unexplored beneath the Old Royal Naval College with our ghoulish guides – including a Zombie cocktail to boost your courage.
Starts at 7pm
 
Greenwich
Ghoulish Ghost Tour & Chilling Cocktails

Online events / webinars

Exploring Southwark's saucy history on the 'naughty' side of the River
11am to 12:30pm
 
Bankside Behaving Badly - London Walking Tour
Fun and fascinating walk through Spitalfields' hidden history
11am to 12:30pm
 
The Spirit of Spitalfields - London Walking Tour
This Halloween, join us for a spellbinding, virtual performance of three chilling tales by Charles Dickens.
6pm to 7:30pm
 
Ghosts & Murder: Haunting Tales by Charles Dickens