The City of London, often called “The Square Mile,” is the historic and financial heart of London. Despite being surrounded by modern London, it is a separate ceremonial county with its own government, traditions, and ancient history dating back nearly 2,000 years.
It is not the same as Greater London — the City is a small district packed with iconic landmarks, financial institutions, and historic sites.
📍 Quick Facts
- Area: 2.9 km² (1.12 sq mi)
- Population: ~10,000 residents
- Workday population: 500,000+ commuters
- Founded: By the Roman Empire as Londinium around 47 AD
- Nickname: The Square Mile
- Famous for: Global finance, historic landmarks, medieval streets
🏛️ A Brief History
Roman Origins
The City began as Londinium, a major trading port of the Roman Empire. Remains of the original Roman Wall can still be seen today.
Medieval Power Center
During the Middle Ages, it became England’s main commercial hub. Many guilds and livery companies still operate from this era.
Great Fire of London (1666)
A devastating fire destroyed much of the City. It was rebuilt under architect Christopher Wren, who designed many iconic buildings.
Modern Financial Capital
Today, it is one of the world’s leading financial districts alongside New York City and Tokyo.
🏛️ Top Attractions & Landmarks
⛪ St Paul’s Cathedral
- Masterpiece of Christopher Wren
- Famous dome and Whispering Gallery
- Site of royal and state ceremonies
🌉 Tower Bridge
- Victorian-era drawbridge
- Glass-floor walkway with river views
🏰 Tower of London
- UNESCO World Heritage Site
- Home of the Crown Jewels
- Nearly 1,000 years of royal history
🏦 Bank of England Museum
- Learn about Britain’s financial history
- View a real gold bar
🏛️ Guildhall
- Ceremonial center of the City
- Roman amphitheatre ruins beneath
🕍 Leadenhall Market
- Beautiful covered market
- Filming location for Harry Potter and the Philosopher’s Stone
🌆 Sky Garden
- Free panoramic views of London
- Indoor gardens and restaurants
🏙️ The Gherkin
- Iconic modern skyscraper
- Symbol of London’s financial district
💼 Finance & Business Hub
The City of London is one of the world’s most important financial centers:
- Headquarters of major global banks
- Home to the London Stock Exchange
- Major insurance market Lloyd’s of London
- Thousands of international financial firms
Finance, insurance, fintech, and legal services dominate the local economy.
🏛️ Unique Government & Traditions
The City has its own governing body:
🏢 City of London Corporation
- Independent from London’s local government
- Led by the Lord Mayor of the City of London (different from London’s Mayor)
🎩 Unique Traditions
- Ancient ceremonies and parades
- Medieval livery companies
- Special police force (City of London Police)
🍽️ Food & Dining
The City offers excellent dining options, especially for professionals:
- Fine dining restaurants
- Historic pubs dating back centuries
- Street food markets at lunchtime
Popular areas include Leadenhall, Smithfield, and riverside spots.
🛍️ Shopping
- Boutique shops
- Luxury goods
- Historic markets like Leadenhall Market
- One New Change shopping center
🚇 Getting Around
The City is extremely well connected:
Underground Stations:
- Bank
- St Paul’s
- Liverpool Street
- Moorgate
Other Transport:
- National Rail services
- River buses on the Thames
- Extensive bus network
- Walkable streets
🎭 Culture & Events
- Museum of London (history of the city)
- Barbican Centre (arts & performances)
- Lord Mayor’s Show (annual parade)
- Seasonal festivals and exhibitions
🌳 Parks & Green Spaces
Despite being a financial district, the City has peaceful green areas:
- Postman’s Park
- Barbican Conservatory
- Riverside Thames paths
- Church gardens
🕒 Best Time to Visit
Weekdays: Busy, energetic financial atmosphere
Weekends: Quiet, relaxed sightseeing
Best months: April–October for pleasant weather
🏨 Who Should Visit?
✔️ History lovers
✔️ Architecture fans
✔️ Business travelers
✔️ Cultural tourists
✔️ Photographers
✨ Why the City of London is Special
Unlike any other district in the UK, the City blends:
🏛️ Ancient Roman history
💼 Global financial power
🏰 Medieval traditions
🌆 Modern skyscrapers
All within one square mile.