But this narrow street hides a wider view. Because just across the road stands one of the great ancient cathedrals of Christendom. The Agia Sofia spans the history of the Holy Roman Empire.
Contrasts run through this city, at every level. We landed here in Asia, but we’re staying in Europe.
Last week, this place felt bafflingly exotic and full of oriental mystery. Yet returning now from central Turkey, Istanbul’s efficient trams and city bustle seem much more familiarly European, almost recalling Zürich rather than the Middle East.
I wend southwards through winding streets to reach the city wall. High above it run the last few kilometres of the mighty railway line which carried the Orient Express towards its European terminus at Sirkeci.
From there, the ferry across the Bosphorus sails to Kadıköy, the town which gave the quartz mineral chaldedony its name, where another line begins at Haydarpaşa station for the onward journey to Baghdad.
The long odyssey from Western Europe into Asia is divided in two by just this narrow stretch of water which lies ahead of me now.
I cross the road beneath the city wall and head east beside the Sea of Marmara, looking out towards the Fenerbahçe lighthouse on the Asian side.
On different days, in fair weather and in foul, I run through the promenade’s moods, stepping from warm blue Mediterranean sunshine into the puddles left by lashing Balkan rains.
On the headland stands a fine statue of Atatürk, founder of the secular Turkish state, looking out to sea. It is thanks to Atatürk’s vision that Turkey is a modern republic but not a religious state.
With her Asian borders facing onto Iraq, Syria and Iran, Turkey’s oft-rebuffed efforts to join the European Union appear from here as critical to the future security of the region and the wider world as any initiative imaginable.
Just a moment’s indiscretion is surely all it would take for this most strategically situated of our near neighbours to back away from disappointment and turn towards the East.
The gravimetric pull of different worlds and different faiths has pulled across these straits for two millennia and more, and that’s not going to change soon.
The golden figure of Atatürk beams proudly upon a poster for the Marmaray project, which will soon link the transit systems of this congested city across the Bosphorus. A metro threaded across an acutely earthquake-prone seafloor calls for advanced engineering on an epic and courageous scale.
Until the line opens, it’s the ferries plying the Bosphorus which must link Europe with Asia, their daily intercontinental travellers surely sharing with Staten Island, Sydney and Kowloon commuters the joy of a ride to work across one of the most dramatic seascapes in the world.
Until recently the island ferries working here included the MV Mavi Marmara, welcomed back to Istanbul by joyful crowds only last December after her heroic attemps to break the seige of Gaza against the armed might of Israel.
Did I say that winning Turkish hearts and minds was important to our world?
This morning, the ferry terminus is bustling and frenetic, full even at this early hour with seemingly half of Istanbul’s 15 million inhabitants. This would easily be Europe’s largest metropolis, if only part of the city weren’t in Asia.
Atop the Galata Bridge at the Golden Horn, several hundred fishermen stand eagerly seeking a catch from these waters beside two continents.
High on the skyline stands the Galata Tower, built by the Genoese almost seven hundred years ago, and still standing tall above Taksim Square today. Last night we met our Turkish friends there, as we were welcomed into the very heart of Istanbul.
It was ten years ago, in the dark weeks after 9/11, when we welcomed the first of four young students from this city to stay with us in England. Now, a decade later, it’s time to pay a return visit to the little family we’ve gathered here.
Tensions have eased since those uneasy days in late 2001 when it was sometimes scary for a Muslim on the streets of London. And yet, with each year that passed it has grown ever harder (and now effectively impossible) for visitors from Turkey to gain a study visa.
Turkey has trodden her own path across those years, electing an Islamic government which seemingly questioned but, so far at least, has not succeeded in dismantling Atatürk’s secular nation-state.
The risks encircling this country’s future remain clear, and yet Europe’s leaders do their best to keep Turkey at arm’s length — misunderstood, feared and above all, surely, regarded as too different, too Islamic, to join the great European project.
I retrace my steps across the bridge and work my way back across the city and through narrower streets to Sultan Ahmed, past the Topkapi Palace to find the Agia Sofia and the Blue Mosque once more.
Because here in Istanbul at the ancient crossroads of civilisation, I know we have so much more to gain.
237. Travels in Asia Minor – Cappadocia, Turkey
98. Off the shoulder of Orion – Costa de la Luz
103. Atlas shrugged – in the mountains of Morocco
46. On the front line – Crawley’s echoes of Madrid
215. Waltz with Bashir – from Lebanon to Gaza
235. Libya and the Arab Spring