London in 3D: Explore the City on Your iPhone

London holds two thousand years of history along a single river. Here is how to walk its streets in full 3D, from wherever you happen to be.

Along the Thames, London wakes slowly. Fog lifts off the water, red buses thread the bridges, and the low chime of a clock tower rolls across the rooftops. This is a city stitched together over two thousand years, where a Roman wall, a medieval fortress, and a glass skyline all share the same riverbank.

But here is the catch: most people only glimpse London through a train window or a rushed weekend. Flights, hotels, and crowds turn a dream trip into a logistics problem. The good news is that you no longer have to wait. You can explore London today, in full 3D with live Street View, right from your phone.

Two thousand years along one river

London rewards the walker. Every corner holds a landmark, and the three most famous ones sit within a short stroll of each other along the river.

Start at Big Ben, the great clock tower beside the Houses of Parliament. Up close you can read the gothic stonework and watch the hands sit above Westminster Bridge. A little downstream, the London Eye turns slowly over the South Bank, its glass capsules lifting for a wide view across the whole city.

Then follow the Thames east to Tower Bridge, the twin-towered drawbridge that everyone mistakes for London Bridge. Its blue suspension cables and stone turrets frame the river like a gateway. Around these three, you will find quiet lanes, old pubs, and market streets that most guidebooks skip.

Step off the tourist line

• Greenwich. The Old Royal Naval College, the clipper Cutty Sark, and the Royal Observatory on its hill, with Canary Wharf across the water.
• The City. Narrow medieval lanes between the Gherkin and Leadenhall Market, empty at weekends.
• Regent's Canal. A towpath from Little Venice to Camden Lock, lined with narrowboats.
• Hampstead Heath. Climb Parliament Hill for the skyline stacked on the horizon.

Walking London in 3D

This is where MAPAS comes in. Instead of flat photos, you drop into the streets themselves and look around as if you were standing there.

Open the app and search for London. Tap into live Street View and you are on the pavement by the river. Pinch to tilt the camera and the buildings rise into full 3D, so you can see how Tower Bridge sits over the water or how the London Eye towers above the bank. Swipe to walk the streets, cross a bridge, or turn down a side road and keep going.

You can trace a route before a real trip, or simply wander for the pleasure of it. Line up the view of Big Ben you want, then plan your day around it. No tickets, no queues, no jet lag, just the city at your own pace.

A South Bank route to try tonight

1. Search for Westminster Bridge, switch to 3D, and tilt until Parliament stands up off the plan.
2. Drop into live Street View halfway across and rotate. Big Ben one way, the Eye the other, the river below.
3. Swipe east along the South Bank, then stop on the Millennium Bridge and look north. St Paul's sits framed dead centre, an alignment far clearer in 3D than on a flat map.
4. Carry on to Borough Market and tilt up to see the Shard rising straight out of the station beside it.
5. Finish at Tower Bridge, rise above street level, and turn a full circle. The Tower, the bridge and the City towers all sit within a few hundred metres.

Run the same stretch through GPS navigation and the walk is ready on the day you land.

What the tilt tells you

A photograph flattens distance. Tilt the same view and London reorganises itself. The Eye and Big Ben turn out to be two minutes apart across one bridge. St Paul's sits on a low rise rather than flat ground. The Shard is on the south bank, not in the City at all, and Greenwich is genuinely far downriver.

Planning the real thing

Almost everything a first-time visitor wants sits in central London and is walkable. The Tube is for distance, not for a single stop. June brings light past nine in the evening, December goes dark by four, and rain is possible in any month. Riverboats are the pleasant way east, the DLR the quick way to Greenwich.

The common mistake is overpacking one day. The Tower, a museum, a market and a West End show do not fit together.

Questions people ask

Is this the same as a satellite photo?

No. Satellite imagery looks straight down at a flat picture. A 3D map has real geometry, so you can tilt, orbit a building and judge height and gradient. Live Street View then drops you to eye level on the pavement.

Do I need an account to start?

No sign-up is needed. MAPAS is free on the App Store, and you can be tilting the skyline a minute after opening it.

Does it work on iPad?

Yes, on iPhone and iPad both. The larger screen suits the flyover view, where you are reading how districts connect.

How much of London can I walk at street level?

Central coverage is dense, so the river, the parks and most terraced streets are walkable. Interiors and private courtyards are not.

Two thousand years of city, and the river still does the navigating. Start on Westminster Bridge and head east.