AnswersAcross1 across: Whitechapel - Court Street entrance on final day
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7 across: Old Street - passage from platforms to escalators
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9 across: Limehouse - top of escalators from Westbound platform
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11 across: Waterloo - stairs from W&C arrivals platform to ticket hall from upper lift landing
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12 across: Sloane (Square) - emergency exit from ticket hall
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13 across: Osterley - footbridge
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15 across: North Ealing - staff box at south end of westbound
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16 across: Slough - platforms 3-5 from platform 2
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18 across: Stanmore - walkway to platform 3
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19 across: Uxbridge - entrance from bus station
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20 across: Angel - long escalator in June 2018
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22 across: Hainault - south end of platform 1
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23 across: Tower (Gateway) - roof over escalators and concourse from street
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27 across: Imperial Wharf - south side of northbound platform shelter
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29 across: Iver - waiting room on platform 4
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30 across: Oval - Harleyford Road elevation
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31 across: Canonbury - west end of eastbound NLL platform
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33 across: Bush Hill Park - platform 1 canopy
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34 across: Aldgate - top of pillar
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35 across: Pinner - steps to footbridge
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36 across: Nine Elms - platform level
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37 across: Monument - stairs to ticket hall
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Down1 down: Willesden Junction - east end of high level platforms from path to Harlesden
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2 down: Theobalds Grove - waiting shelter on northbound platform
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3 down: Chorleywood - signal cabin from car park
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4 down: Preston (Road) - stairs from platform to ticket hall
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5 down: Loughton - 21 road buffers
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6 down: Edgware Road (Circle) - roundel at peak time exit to Marylebone Road
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8 down: Tottenham Court Road - Dean Street ticket hall
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10 down: Hoxton - east entrance from Cremer Street
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14 down: Mile End - OPO system not in use at west end of SSR platform
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17 down: Greenwich - lift and platform 3
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18 down: Stratford - between westbound Central line and DLR platform 4b
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19 down: Royal Albert - vehicle height barrier
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21 down: Ladbroke (Grove) - mirror at top of stairs to eastbound platform
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24 down: Woolwich (Crossrail) - ticket hall ceiling
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25 down: Reading - North end of footbridge in February 2020
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26 down: Highgate - view from southbound train
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28 down: Wapping - ceiling of platforms
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32 down: Balham - above exit to National Rail station
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33 down: Burnt Oak - station from market car park
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Bonus:
1 (LU) Victoria
2 (LO) New Cross
3 (TfL Rail) Hanwell
4 (DLR) Mudchute