Spot a London zebra crossing

Spot a "Mind the Gap" sign

On any Underground platform find a yellow MIND THE GAP painted on the platform edge or a sign. Photograph the warning.

Spot a Banksy or street artist

Find a piece of London street art (Banksy original, Stik figure, or any Shoreditch wall). Photograph the work.

Spot a Beefeater

Find a Yeoman Warder (Beefeater) in their red-and-gold uniform at the Tower of London. Photograph the costume from across the cobbles.

Spot a black London cab

Find a classic black Hackney carriage on the road or at a rank. Photograph the rounded silhouette with the FOR HIRE light on if you can.

Spot a black taxi For Hire light

Find a black cab with its yellow FOR HIRE light glowing (meaning you can hail it). Photograph the light against the dark cab.

Spot a blue plaque

Find a round blue plaque on a London building (English Heritage marks the homes of famous past residents). Photograph the plaque close-up.

Spot a Camden punk

Walk into Camden Town and find punk fashion: leather, mohawks, Doc Martens, fishnet, the lot. Photograph the storefront or the look.

Spot a London bus stop

Find a red TfL bus stop with the digital timetable display. Photograph the bus-stop pole and timetable.

Spot a London Christmas wreath / Mayfair facade

In Mayfair or Marylebone, find a Georgian townhouse facade with a flower-box, wreath or ironwork. Photograph the elegant frontage.

Spot a London phone box library

Some old phone boxes have been converted into mini libraries, defibrillators or coffee kiosks. Find a repurposed phone box and photograph the inside.

Spot a London pigeon on a statue

Find a London pigeon perched on a statue (Nelson on his column, any of the lions in Trafalgar Square). Photograph the irreverent gathering.

Spot a London Underground roundel

Find a red-and-blue Underground roundel at any tube entrance. Photograph the disc with the station name across the bar.

Spot a Notting Hill pastel mews

Walk into Notting Hill (Portobello, Westbourne Grove) and find a row of pastel-coloured townhouses. Photograph the colour palette.

Spot a pint of bitter

Find a pint of British ale or bitter on a pub bar (London Pride, Doom Bar, anything with a hand pump). Photograph the glass with the head.

Spot a pint of gin and tonic

Find a tall G&T in a globe glass with cucumber, juniper or a slice of citrus. Photograph the bubbles.

Spot a pub sign

Find a hanging pub sign with a quintessentially British name (The Red Lion, The Crown, The George). Photograph the painted sign.

Spot a red double-decker bus

Find a classic red double-decker on its route (the modern Routemaster or any TfL bus). Photograph it from across the road as it passes.

Spot a red phone box

Find a classic red K2 or K6 telephone box. Most still exist in the centre (Covent Garden, around Parliament) even if barely used. Photograph one.

Spot a Routemaster heritage bus

Find a heritage Routemaster (the old open-platform red bus) on routes 15H or 9H, or in a museum. Photograph the open back platform.

Spot a Royal Guard

Find a Royal Guard in red tunic and bearskin hat at Buckingham Palace, the Horse Guards on Whitehall or one of the royal parks. Photograph the uniform.

Spot a Sunday roast

Find a Sunday roast on a chalkboard or plate (Yorkshire pudding required). Photograph the roast.

Spot a Tube map

Find a London Tube map on a platform wall, in a carriage or a pocket pamphlet. Photograph the famous coloured-line schematic.

Spot a Union Jack

Find a Union Jack flag flying on a government building, a souvenir shop, a Burberry storefront or a tour bus. Photograph the colours.

Spot Big Ben

Find a clear view of the Elizabeth Tower with the Big Ben clock face. Photograph it from Parliament Square, Westminster Bridge or the South Bank.

Spot fish and chips

Find a plate of fish and chips at a chippy or pub, the battered fish with chunky chips and mushy peas. Photograph the plate.

Spot the Gherkin

Find a view of 30 St Mary Axe (The Gherkin) in the City of London. Photograph the curved glass tower.

Spot the London Eye

Find the London Eye Ferris wheel on the South Bank from across the river or below. Photograph the circle of pods.

Spot the Shard

Find a view of The Shard, the 309-metre glass skyscraper south of London Bridge. Photograph the pointed top against the sky.

Spot Tower Bridge

Find Tower Bridge from the South Bank, the Tower of London or a Thames bridge. Photograph the two towers and the suspension chains.