Things to do today:
HALLOWEEN TEA: Frankenstein macarons and bloodied finger éclairs are on the menu at Lancaster London Hotel's Halloween-themed afternoon tea. £35, book in advance, until 31 October
LUNCHTIME TALK: Explore the evolution of the English language with a lunchtime lecture at the British Library. £5, book in advance, 12.30pm-1.30pm
9TH CENTURY BRITAIN: Learn about Britain in the 9th century with a talk about Nennius, the author of History of the Britons, at the British Library. Free, just turn up, 6.15pm
POST-BREXIT DIPLOMACY: Former foreign policy adviser Tom Fletcher discusses the future of European and global policy in the post-Brexit context. Lecture takes place at London School of Economics. Free, just turn up, 6.30pm-8pm
COSMOS TALK: Scientist and writer Sean Carroll explains how the laws of physics control the cosmos and human life in a talk at the Royal Institution. £14, book in advance, 7pm-8.30pm
VEUVE CLICQUOT TASTING: Sample three Veuve Clicquot and two Cloudy Bay wines in a tasting at Vivat Bacchus in London Bridge. £20, book in advance, 7pm-10pm
IMPROVISED COMEDY: Live TED-style talks inspire comedy sketches take place in Waterloo's Vaults. The guest expert speakers inspiring the acts of this week's Wunderkammer are pianist Colin Sell and comedian Jay Foreman. £7, book in advance, 7pm
SCARE SLAM: Storytellers share their scariest tales at Blackshaw's Scare Slam at The Old Lion Red Theatre. £7, book in advance, 9.30pm
Good cause of the day
CROWDFUNDING CAMPAIGN: Help students from non-selective schools develop their confidence, CVs and employability skills by donating to Access Aspiration's crowdfunding campaign. The charity needs to raise £25,000 before 26 October to help prepare 280 young Londoners prepare for life after school.
Fun things to do with our friends and sponsor Funzing...
How well do you really know London? Visit the streets that inspired Harry Potter locations and see London's most superstitious hotel. On Matt's tour you will explore hidden places and discover stories unknown to even the most knowledgeable of Londoners. Get tickets
London is a city of incredible transformation. With structural remains that date back to ancient history still in existence, this unique walking tour takes in Lost London in all its former glory. From the Titanic booking office to the graveyards of man's best friend, you'll discover the weird and wonderful places that used to exist in the capital but are now only committed to memory. Using old photographs, newspaper cuttings and stories from the past, you'll be amazed at what has largely been written out of our history books... Get tickets
Visit old pubs, even older churches, hidden rivers, mysterious tunnels and more on this tour of hidden Londo. You'll hear tales of the myths and legends which made the City of London what it is today, and find out the area's links to nursery rhymes and literary figures. Get tickets
Have you visited London's Roman ampitheatre? What about London's Medieval market places? Hear weird and wonderful tales of our beautiful city as you take a walking tour, seeing everything from centuries-old churches to the hanging place of William Wallace. Whether you've lived here all your life or are visiting for a few days, you're sure to learn something new about London. Get tickets