Things To Do Today In London: Monday 24 September 2018

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Sea things gallery at National Maritime Museum.
Some new nautical treasures at the National Maritime Museum

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Things to do:

NEW GALLERIES: There's not one, not two but four whole new galleries for you to explore at the National Maritime Museum. Whether you're a Tudor history buff, a water baby, or fancy exploring the ice cold ends of the Earth, there's 1,100 shiny new objects waiting to be discovered. National Maritime Museum (Greenwich), free, just turn up, 10am-5pm

THIS IS US: Through his remarkably detailed etchings of anthropomorphised cityscapes and comic strip-style skits, artist Martin Langford lampoons our modern age with distinctively British wit. See his imaginative monochrome responses to corporate greed, environmental destruction and other not-so-cheery subjects on display in west London For Arts Sake (Ealing), free, just, 10am-5.30pm, 14 October

HARVEST MOON ILLUSION: According to the Covent Gardener, for just one hour a year a rather risque optical illusion can be spied within a 17th century central London church. If that's piqued your interest, head down to St Paul's in Covent Garden at lunchtime and take a peek through the keyhole. St Paul's Church (Covent Garden), free, noon-1pm, until 25 September

LIVING WITH GODS: Dr Neil MacGregor comes Southwark Cathedral to chat about his new book, Living with the Gods: On Beliefs and Peoples. This latest tome offers a panoramic exploration of how different societies throughout history have understood their place in the cosmos. Southwark Cathedral (London Bridge), £13, book ahead, 7pm-8.30pm

SILENT DISCO: The leaves are falling, the evenings are already closing in, and your summer holidays are but a distant memory. But don't despair — Trapeze Bar has just think thing to banish those back to work blues: A back to school-themed silent disco. Expect games, freestyle dancing and, er, Britney music video reenactments. Trapeze (Shoreditch), £12, book ahead, 7pm

Hijinks aplenty at the House of Idiot

ALL ABOUT BLOCKCHAIN: Hands up who's still not quite sure what the deal of blockchain is. Make it your mission to get to grips with the tech that underpins cryptocurrencies, and learn how its utility extends far beyond finance at this evening talk. The Royal Institution (Mayfair), £16, book ahead, 7pm-8.30pm

COCKTAILS AND CALLIGRAPHY: Does your handwriting get mistaken for a child's? Want to impress your mates with beautifully penned birthday cards? This modern calligraphy class may be just what you're after. Join lettering artist Kirstie Bird who'll be sharing her nib knowledge over a cocktail or two. Drink, Shop & Do (King's Cross), £45, book ahead, 7pm-9pm

CHAMPAGNE AND CIGARS: Add a touch of class to your Monday night with the help of Michelin-starred chefs Chris & Jeff Galvin. Your ticket gets you Chares Heidsieck vintage Champagne to sip, Hunters & Frankau cigars to puff, and a selection of canapés to nibble on. Galvin La Chapelle (Spitalfields), £65, book ahead, 7pm-10pm

HOUSE OF IDIOT: The silly and the sublime converge at Pleasance Theatre's brand new scratch night. Expect sea-lion shenanigans, a rapping rapscallion, and gender slaying super stars. Pleasance Theatre (Islington), £12, book ahead, 7.30pm

THE BIG LEBOWSKI: The Dude awaits at Rich Mix, where you can catch a special 20th century screening of the Coen Brothers' twisted comic noir The Big Lebowski. What makes it so special you ask? It comes with £6 White Russians. Rich Mix (Shoreditch), £6, book ahead, 8.45pm

Good cause of the day

Fixed your weekend plans yet? Satisfy your craft beer cravings while contributing to the greater good at London Fields Brewery. All the proceeds from their Craft Beer Cares Festival will go to London-based anti violence charity Art Against Knives.