- Take our fiendish Thames quiz.
- How do London's buses get their numbers?
- Watch this video of London's air traffic... it's getting pretty busy up there...
Things to do today:
NEW SCIENTIST LIVE: Meet British astronauts, discover the latest in technology and hear talks from the likes of Dara O Briain and Alice Roberts at New Scientist Live. £25/£29, book in advance/just turn up, all day (until 25 September)
LUNCHTIME LECTURE: Discover how the Cadbury's factory women in Birmingham helped the war effort. Researcher Fiona Joseph also discusses the issues of writing about real life in fiction. Takes place at The Royal Marsden in Brompton. Free, book in advance, 12.30pm
CREATE SYRIA EXHIBITION: Create Syria at House of Vans in Waterloo is a multimedia installation exploring how arts can help the aftermath of a crisis. The exhibition shows the stories of displaced Syrian artists. Free, just turn up, 4pm (until 2 October)
GALAPAGOS NATURE CONSERVATION: Talks about marine iguanas and why plankton are important to Galapagos's marine habitats make up the Galapagos Day event at Regent's University London. £30, book in advance, 6pm
CUTTY SARK: Browse sea-inspired photos curated by the the London Photo Festival while Ensemble Perpetuo perform chamber music after hours, aboard the Cutty Sark. £20 (+booking fee), book in advance, 6.30pm
BANNED BOOKS TALK: As part of Banned Book Week, The British Library is holding a talk on censorship within literature and the problems with free speech. £8, book in advance, 6.30pm
DATING BINGO: If you're tired of swiping left (or right) and fancy meeting your prospective partner in real life, head to The Crown and Shuttle in Shoreditch for a night of dating bingo. £5-£8, book in advance, 7pm
OLYMPIC SWIMMING TALK: Sports journalist Charlie Rowe interviews Olympian Joanne Jackson about her swimming history as part of Live Sport Talks. £15 (+booking fee), book in advance, 7pm
FRENCH FILM PREMIERE: See the UK premiere of French film One Man And His Cow at Picturehouse Central, followed by a Q&A with the director, a champagne reception and wine and cheese. All profits go to Cancer Research. £45, book in advance, 7pm
CYCLING STORYTELLING: Motion at Theatre Utopia, Croydon, tells the dark side of professional cycling through storytelling and spoken word. £10, book in advance, 7.30pm (until 25 September)
CANARY WHARF CABARET: Stunts, glamour and cabaret make up Marlene's Marvellous Menagerie in Canary Wharf. £15, book in advance, 8pm
Over 200 Interior Design Brands Under One Roof
This week, King's Cross will be packed with designers and creative inspiration for Designjunction.
The show brings together over 200 interior design brands, 70 pop-up shops, 12 street food vans and four exhibition spaces, plus restaurants, architectural landmarks and creative institutions.
Londonist readers can get their hands on tickets for £6 — half the price of standard entry, meaning you can be inspired by up and coming designers' wares for less.
Designjunction runs from 22-25 September at Granary Square, King's Cross. Get your half-price tickets by quoting LONDONIST at the checkout.
Good cause of the day
REMEMBERING ELEPHANTS: Find out about elephant conservation and photography at the Royal Geographical Society. Profits go to elephant conservation in Africa. £23.50 (+booking fee), book in advance, 7.30pm
Our daily pick of Funzing events
POTTERY WORKSHOP: Use a potter's wheel and learn the art (and history) of pottery with Vinicius Les, a master of his field. Get your tickets here so you can create a one-of-a-kind artisan bowl. £35, 1/8/15/22 October
HAUNTED PUB CRAWL: Take a unique pub crawl through Highgate and Hampstead, uncovering the scary and scandalous history of the areas. £20, 22/23/29/30/31 October