How to See London’s Top Attractions for Free

London is packed with free experiences. From the classic Changing of the Guard to the modern skyline at Horizon 22, you can see some of the city’s most iconic sights without spending a penny. But the places that truly define London — the historic, powerful, and uniquely British experiences like the Tower of London, the Palace of Westminster, Westminster Abbey and St Paul’s Cathedral — often come with hefty price tags.

So how do you step inside some of London’s most iconic buildings without breaking the bank?

One option is to buy a multi-attraction pass. These bundle several sights together and can help you save money — if you use them strategically. The four sights (listed above) would cost you about £127.80 if booked separately, but with the London Pass Explorer (4 choices) you could see them for around £99. A 2-day All Inclusive Pass at £114 can be excellent value if you plan to visit these places and add other major paid attractions to your itinerary. But — let’s be honest — if you’re also paying for flights, accommodation, food, and transport (especially as a family of four, a student, or a budget traveller), spending that much on sightseeing alone may simply not feel realistic.

But there is another way.

You can get a real taste of London’s top historic sights for free or very cheaply — without full tours, but with genuine access inside these buildings. If you’re happy with a ‘sneak peek’ rather than a deep dive, you could experience all four for just £5.

Here’s how.

London’s most iconic sights — on a budget

1. The Palace of Westminster (Big Ben & Houses of Parliament)

The home of the British Parliament — and the instantly recognisable Big Ben — is one of the most photographed sights in London. A full tour costs around £34 and includes the House of Commons, the House of Lords, and Westminster Hall, the oldest part of the building.

If you want to see the interior for free, visit when Parliament is sitting and watch a live debate from the public galleries of either the House of Commons or the House of Lords. You won’t see everything included on a paid tour, but you will experience the historic interiors — and, if you’re lucky, a lively debate in action. (Photography isn’t allowed inside.)

Check when Parliament is sitting — https://whatson.parliament.uk/ — then simply turn up and join the queue on the day. No ticket is needed for general debates.

Nearest Underground: Westminster Entry: Cromwell Green entrance.

2. Westminster Abbey

A UNESCO World Heritage Site and one of Europe’s greatest Gothic churches, Westminster Abbey is where British kings and queens are crowned — and where many of them are also buried. A full visit costs about £31 per adult, and it is genuinely worth it if your budget allows.

If it doesn’t, there’s a free alternative: Evensong, the evening service, usually at 5pm, often featuring the Choir of Westminster Abbey. You won’t get a tour, but you will experience the grandeur, acoustics, and atmosphere of this extraordinary space. Be sure to check the schedule before visiting.

Nearest Underground: Westminster Entry for Evensong: Great West Door.

If you’re in London in October during Edwardtide (the National Pilgrimage to St Edward the Confessor), you can attend a service for free and may have the opportunity to see the shrine. And, at Christmas, there are special services and concerts — many are free, but tickets are extremely popular, so you’ll need to act fast.

3. Tower of London

A vast fortress — part castle, part prison, part royal treasury — made up of 22 towers and dominated by the White Tower, the oldest surviving building in London. Guarded by the famous Yeoman Warders (Beefeaters), it is where Anne Boleyn and Catherine Howard were executed, where the Crown Jewels are kept — and where mystery still lingers. A standard adult ticket costs £35.80 (£37 from March).

If you’re looking for a more affordable way to step inside, consider booking the Ceremony of the Keys — the historic nightly locking of the Tower, a tradition that has taken place for over 700 years. You won’t be able to explore the fortress in full, but you will witness a powerful and authentic piece of living history after the gates close to the public.

4. St Paul’s Cathedral

Few buildings dominate London’s skyline quite like St Paul’s Cathedral and its world-famous dome. Inspired by St Peter’s Basilica in the Vatican, this Baroque masterpiece is one of the city’s most recognisable landmarks. It’s where King Charles III married Diana, Princess of Wales, and where national figures such as Admiral Lord Nelson, the Duke of Wellington, and the cathedral’s architect, Sir Christopher Wren, are buried.

A standard visit costs £27, but you can step inside for free by attending one of the Cathedral’s regular services. You won’t be able to climb the dome or explore the galleries, but you will experience the beauty, scale, and atmosphere of St Paul’s — often accompanied by the extraordinary music of the Cathedral Choir and organ. Check service times before you visit.

Nearest Underground: St Paul’s

Other great free (or low-cost) experiences in London

Combine these historic ‘sneak peeks’ with the experiences below and you’ll get the very best of London — for hardly any money.

5. Best Free Experiences

• Changing of the Guard
• The opening of Tower Bridge
• Thames River Cruise (one-way from Westminster to Greenwich from £10.80 with Uber Boat)

6. Best Free Observation Decks & Gardens

• Horizon 22
• Sky Garden
• The Garden at 120

7. Best Free Museums

• The British Museum
• Natural History Museum
• The Wallace Collection
• V&A (Victoria & Albert Museum)

8. Best Free Galleries

• The National Gallery
• Tate Modern (modern art)
• Outernet (digital art installations)

9. Best Walks

• St James’s Park Walk
• Hyde Park & Kensington Gardens
• Southbank Walk: London Eye to Tower Bridge
• Regent’s Canal Walk: Little Venice to Camden Town

10. Best Markets to Stroll Through

• Covent Garden Market
• Camden Market
• Leadenhall Market
• Borough Market

11. Best Free Seasonal Events & Festivals

London is always adding new free events, pop-ups, art installations and cultural festivals to its calendar. Before your trip, check Time Out London to see what’s happening — you might discover something completely unexpected. The list below highlights some of the best annual events worth checking out.

• January: New Year’s Day Parade, Winter Lights Canary Wharf
• February: Chinese New Year
• March: St Patrick’s Day Parade
• April: London Marathon
• May: Chelsea in Bloom
• June: London Open Gardens, Trooping the Colour
• July: London Pride, Sculpture in the City
• August: Notting Hill Carnival
• September: Open House London
• November: Lord Mayor’s Show
• December: Christmas lights across London

London may have a reputation for being expensive, but it’s also incredibly generous if you know where to look. With a little flexibility and curiosity, you can step inside royal churches, historic fortresses, and the heart of British democracy — without draining your bank account. 

Choose the experiences that matter most to you, mix them with the city’s incredible free museums, walks, markets and viewpoints, and you’ll discover that London doesn’t have to cost a fortune to feel unforgettable.