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BLOOD: Today’s opportunities to donate blood are at Brewers Hall in the City of London, Kilburn Community Centre and Stoll in Fulham . Free, see site for terms and conditions
ARCHITECTURE: Flowers Gallery hosts an exhibition of works from photographer Michael Wolf’s series: Architecture of Density. Free, just turn up, until 22 Feb
OUT OF ICE: Scottish environmental artist Elizabeth Ogilvie presents a dramatic new exhibition at Ambika P3 made from ice and water. We’re not sure what to expect but it sounds intriguing. Free, just turn up, until 9 Feb
CARNABY ROBINS: Carnaby Street is giving away the lovely robins that formed its Christmas decorations this year (not the five big ones, those are being donated to the RSPB). Pop along to 19 Foubert’s Place, just off Carbary Street, to get yours (but be quick, we imagine they’ll fly off the shelves — sorry). Free, just turn up, 12-4pm
GOTHIC FILM: The Gothique Film Society is at Conway Hall with screenings of the 1932 films Most Dangerous Game and Kongo. A long-running specialised members club for Fantasy, Mystery and Horror enthusiasts, newbies can still buy tickets for a single show. £7, prebook or just turn up (see website for more details), 6.30pm
POETRY: Mark “Mr T” Thompson and Sarah Thompson host Lipped Ink at the Poetry Cafe, with guests and open mic. £5, just turn up, 7.30pm
ORCHESTRA: London Philarmonic Orchestra are back at Royal Festival Hall, this time to perform Brahms’s First Piano Concerto and Beethoven’s Symphony No. 6. £39/£33, prebook, 7.30pm
TRAGICOMEDY: Comedy = tragedy + time, right? So go to Hackney Attic tonight for stories, songs and spoken word about tragedy from Helen Zaltzman, Jay Foreman, Emily Capell, Liars’ League, Miss L, Hannah Chutzpah and Rosie Wilby. £7/£5, prebook, 7.30pm
ROLLER SKATE: The Friday Night skate starts at Wellington Arch. Anyone who feels competent on skates is welcome to join. Free, just turn up, 8pm
Good Cause of the Day
A charity all-nighter takes place this Saturday, offering over 10 hours of music from over 80 artists. Taking place at Hidden nightclub on Tinworth Street to help raise money for Great Ormond Street Hospital, this is the fourth annual DEF:INITION fundraiser, which has helped to raise over £10,000 to date. £8, prebook, Saturday 18 Jan 9pm-7am
Registration for the London to Brighton Bike Ride (taking place on 15 June 2014), which raises money for the British Heart Foundation, also opens this Saturday 18 January. It’s the oldest and biggest charity bike ride in Europe and places always get snapped up fast so be quick. £35, register online
London Connection Puzzle
The previous clues this week were HORTENSE, CATHERINE and BARBARA. Today’s final clue, and the most well known of the set, is NELL. Can you work out the London connection? No need to email in, as we had a winner from the first two clues.
From the Archive
For our final instalment of Roman Week, check out these extensive remains from beneath 101 Lower Thames Street (an archetypal ugly 1960′s office block). The remnants are from an old Roman bath house, which was discovered in 1848 during construction of the Coal Exchange (itself sadly long-since demolished). The baths were constructed in the late 2nd century, and include underfloor heating (hypocausts). Usually termed the Billingsgate Bath House, the remains are occasionally open for public visits, including on Open House weekend in September, and we’d thoroughly recommend taking a look. An even bigger bath house has been discovered further west on Thames Street, in Huggin Hill, but these are not publicly accessible.