It’s not all about money in this museum, they also have a lot of interesting pictures showing how London used to look in the past.
There’s a free exhibition of old manuscripts by the likes of Galileo, Shakespeare and Henry VIII, plus some beautiful old Bibles and maps as well.
One of the world’s great museums with a huge collection of Greek, Roman, Egyptian, Chinese and African artefacts. If you only see one museum, make it this.
The best free parade in London. You’ll get to see the Yeoman Warders locking up the Tower of London in a ceremony that dates back over 700 years.
Every tourist who visits London has this parade at the top of their itinerary. It’s totally free – but it’s also incredibly crowded!
If you don’t fancy the big crowds at Buckingham Palace then try the Changing the Guard ceremony at Horse Guards instead.
A monthly meeting of the Lord Mayor and Aldermen. It’s worth a visiting this event simply to see inside the medieval Guildhall.
Covent Garden is a great place to do some people watching. You can sit in one of the cafes and enjoy some street entertainment.
A short ceremony in the afternoon which makes a great alternative to Changing the Guard if your kids can’t handle the crowds at Buckingham Palace.
After you’ve looked at Parliament and Big Ben have a walk down Whitehall and peer through the black gate to see where the Prime Minister lives.
This interesting little museum is housed inside an old almshouse, and shows how British living rooms and furnishings have changed over the centuries.
If you’re looking for a cheap way to fill up an hour then how about climbing up Greenwich Hill to see its fantastic view of the London skyline?
This art gallery has something surprising in the basement: the remains of Londinium’s Roman amphitheatre where the gladiators fought.
A popular photo-spot for tourists are the sentry boxes at Horse Guards. They stand by the mounted soldiers and snap a photo next to their giant horses.
This is one of the best free events in London. You can sit in the public gallery and listen to the politicians debating all afternoon.
Tourists don’t realise they can see inside the Lords for free. They don’t even need a ticket – just queue up outside Parliament.
You’re spoilt for choice when it comes to free museums in London. The Imperial War Museum is a popular choice with military enthusiasts.
It’s just an undercover shopping street really, but the beautifully ornate decorations make Leadenhall Market a great place to stop for a pub lunch.
Explore the 2,000-year-old Temple of Mithras in the basement of the Bloomberg building, atmospherically lit with hologram-like effects.
Once a month the Mayor of London has to sit inside City Hall and get grilled by the London Assembly. You can see it for free.
Another of London’s free museums. This one tells the story of the city from pre-history all the way through medieval and Tudor times, up to the present day.
An interesting museum that explores the history of the River Thames and the area around Canary Wharf and Docklands.
The National Army Museum tells the story of the British military from the days of Henry V and Agincourt all the way up to World War II and beyond.
This is the best free gallery in London – and possibly the entire world! You’ll find paintings by lots of great artists like Leonardo da Vinci and Van Gogh.
This free museum is worth a visit just to see the bullet-pierced jacket that Nelson wore at the Battle of Trafalgar.
The National Portrait Gallery is round the corner from the National Gallery, and concentrates on famous faces from British history.
Combine the Natural History Museum with the Science Museum next-door for a great kid’s day out that won’t cost a penny.
The Old Royal Naval College is one of Wren’s best pieces of architecture. Don’t miss the chapel and spectacular Painted Hall.
This is one of two views of the skyline that won’t cost you any money. Ride the lift to the roof terrace for a fantastic view of St. Paul’s Cathedral.
You’ll have to trek over Hampstead Heath to find it, but when you climb up Parliament Hill you’ll be rewarded with a great view of London’s skyline.
This small university museum is great for people interested in ancient Egypt. It has an extensive collection of pottery, jewellery and tomb stelae.
UK citizens can write to their local MP and request a ticket to see the Prime Minister’s Questions session in the House of Commons.
Do you fancy a bit of exercise? Take a stroll up Primrose Hill and see how many of London’s landmarks you can spot without looking at the plaque.
This museum has more planes and helicopters than an airport. It is especially strong on World War II planes like the Spitfire and Lancaster Bomber.
How about watching a case at the Royal Courts of Justice? The case might be dull, but it’s still worth a look simply to see the cathedral-like interior.
Christopher Wren’s Royal Hospital is home to the Chelsea Pensioners. You can walk around the grounds and see the chapel, Great Hall and museum.
If you’re a fan of contemporary art then check out the Saatchi Gallery. It’s full of up-and-coming artists that you’ve probably never heard of.
This castle-like gatehouse used to part of the medieval Clerkenwell Priory. It contains a small museum about the Crusades and St. John’s Ambulance.
If you want to visit St. Paul’s for free then we recommend attending the Evensong service because that includes some music.
A good museum for families, especially if your kid is into space. It has lots of early inventions from clocks and computers to planes and rockets.
Sir John Soane’s old house is one of the best museums in London. The decorations inside really do have to be seen to be believed.
Imagine if they put the glass Palm House from Kew Gardens on top of a skyscraper. That’s exactly what they’ve done at the Sky Garden.
If you’re stuck for something to do at Sunday lunchtime then why not listen to some lively debate and heckling at Speakers’ Corner?
Tate Britain is one of London’s most popular art galleries, with British art by the likes of Constable, Gainsborough, JMW Turner and Blake.
Tate Modern is housed inside an old power station and contains some of the biggest names in modern art: Andy Warhol, Dali and Pablo Picasso.
Don’t miss the Cast Room and artworks by Raphael. It’s also particularly strong on Indian, Asian and Middle Eastern art.
An eclectic collection of arms, French furnishings, pieces of porcelain and jewellery, and paintings by the likes of Rembrandt, Rubens and Titian.
A great way to see inside Westminster Abbey for free is to attend their Evensong service and enjoy some beautiful choral music.