Things To Do Today In London: Tuesday 21 March 2017

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Things to do today is sponsored by the Institution of Civil Engineers.

Felt Cactus Workshop at Nanna's Cafe

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Things to do

GLOBAL ART: New exhibition Fragments is a visual exploration on the very idea of fragmentation, created by artists from Brazil, France and Spain. Espacio Gallery, free, just turn up, noon-7pm

THINK SPACE: The UK space sector is growing at a rapid pace. Find out about the instruments made in Britain that are changing space exploration. Royal Museum Greenwich, £6/£5, book ahead, 5.15pm-6.15pm

MAKING MONEY: Ever wondered how money is made? Bank of England Museum curator Jennifer Adam talks about the launch of the polymer £5 note last year, and the history of the production of banknotes. Guildhall Library, £5 (+ booking fee), book ahead, 6pm-8pm

SEXY SHORTS: Short film night Bar Shorts is back with a line-up that will explore sexuality, liberty, frustration, humour in all that is amorous. Watch the films, then chat to the filmmakers and directors. The Book Club, free, book ahead, 7pm-11pm

HIGH ALTITUDE MEDICINE: Climbing Everest could help medical research. This lecture explains how data taken from a 2007 medical expedition to the top of the mountain can be used to explain why some people can adapt to high altitude better than others. Museum of London, free, just turn up, 6pm-7pm

Think Space lecture at Royal Museum Greenwich

CONCEALED REVEALED: Old shoes up chimney breasts, mummified cats bricked up in walls and horse skulls buried under hearthstones are just some of the odd objects found hidden away in post-medieval houses. This talk aims to reveal who was concealing them, and why. Horse Hospital, free, book ahead, 6pm-9pm

DEEP LIFE: Travel deep into the earth's crust with geochemist Tullis Onstott, to take a look at the life forms living down there and whether their presence gives us clues towards the possibility of extraterrestrial life. Royal Institution, £14/£10/£7, book ahead, 7pm-8.30pm

CLASSICAL CONCERT: There's more to LSE than just economics. The LSE Choir and Orchestra hold their Spring Concert, performing works by Gabriel Faure, Beethoven, Mozart and more. LSE, £7, book ahead, 7pm-9.30pm

LOLITICS: Self-proclaimed 'Lefty political comedy club' Lolitics makes its monthly appearance in Camden, with a line-up including feminist activist Chloe Green and stand-up comedian Charlie Partridge. Best of all? No heckling, and the comedians won't pick on you. The Black Heart, £5, just turn up, 7.30pm

FELT CACTUS: Create a plant that doesn't need any watering and brightens up any room at this felt cactus workshop — it's aimed at all abilities. Nanna's Cafe in Highbury, £35, book ahead, 7.30pm-10pm

Sponsor message

Is this London's best infrastructure project?

Londoners have a chance to cast a vote at this year's Civil Engineering Awards — there's a special Londonist People's Choice category, with the winner chosen by you.

Fighting for the crown is the Bermondsey Dive-Under project, a mass detangling operation which will result in Southeastern trains 'diving under' the new Thameslink tracks, reducing delays for commuters. What's even more impressive is that most of the work was completed using demolition waste material, saving it from going to landfill. Vote here if you think the Dive-Under stands a chance.

Art review: ghostly ships

Copyright Anderson & Low

The Science Museum's collection of model ships in storage has been photographed through their semi-transparent protective covers. Photographic duo Anderson & Low have given these ships a ghostly resurrection, and the fuzzy images capture a sense of the history these models represent.  The way the exhibition is laid out with low lighting and plenty of space only adds to the ethereal atmosphere in the works. Voyages at Science Museum Until 25 June, free ★★★★☆ (Open every day) Tabish Khan

Theatre review: triple dance delight

This Royal Ballet triple bill includes the world premiere of Crystal Pite's Flight Pattern, a poignant reflection on the plight of refugees. Placing them in limbo, neither in their old or new home, shadows fall on masses of huddled dancers whose movements are extremely innovative. Set to Henryk Górecki's moving Symphony of Sorrowful Songs, this powerful piece contrasts individual needs with mass plight. The bill also includes David Dawson's The Human Seasons, full of elegant physicality, and Christopher Wheeldon's After the Rain, in which Zenaida Yanowsky (on the night we went) seemed ethereally fragile yet deeply human. The Human Seasons / After the Rain / Flight Pattern, Royal Opera House, Bow Street, WC2E, £3-50, 16-24 March 2017 ★★★★☆ Sam Smith

Good cause for the day

HOGWHATS QUIZ: Immerse yourself in the wizarding world at this regular Harry Potter quiz. The theme this month is Ravenclaw, so it'll be one for the brainbox Potter fans. All the profits go towards, which aims to give all children an equal opportunity. Concrete Space in Shoreditch, £20, book ahead, 6.30pm-10pm

Fun things to do with our friends and sponsor Funzing...

Festive Interactive Harry Potter Tour

Get sorted into one of the four magical houses of Hogwarts, and go in exploration of the city’s famous filming locations on this 2-hour walking tour. You’ll meet your guide outside the Palace Theatre, where Harry Potter and the Cursed Child is showing, and set off on your journey across town - following in the footsteps of Deatheaters, visiting the inspiration for Knocturn Alley, and marvelling at the Ministry of Magic. And you better brush up on your Potter knowledge, because you can earn points for your house along the way, by taking part in trivia quizzes. The winners? You’ll find out when the tour ends at Platform 9 3/4… Get tickets

A Secret London Tour

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

Step on Board the Haunted Tube Express

The London Undergound is over 150 years old, and it's seen a thing or two in its time. Are you brave enough to face the ghosts of the Underground? Travel through the home of the Bank's Black Nun, learn about the elderly angel who saved a tube worker from death, and come to face to face with Farringdon's screaming spectre. Bring your oyster card and discover the hidden secrets of the Underground. You'll need to have an Oyster card or travelcard for this event. Get tickets

Forgotten Old London

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