Full of famous landmarks, some of the world's best shopping and an incredible food scene, London is a city like no other. Whether you're a seasoned visitor, or you're simply looking to make your first trip as memorable as can be, look no further than Plum Guide's list of the most unique things to do in London.

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One of the most unique things to do in London for the whole family, arrange to take part in the 'Harry Potter Film Locations in the City' walk, organised on Wednesdays by London Walks. Led by an entertaining actor, you’ll see plenty of sights you’ll recognise from the movies including the Westminster locations featured in Order of the Phoenix, The Prisoner of Azkaban, and the Half-Blood Prince. The Warner Bros. studio's 'Making of Harry Potter' tour is another option, where you’ll see authentic props and costumes from the films. Imagine standing in the middle of the Great Hall as though you were about to enjoy an end of term feast or wandering around the streets of Diagon Alley. Keep your eye out for some of the most famous establishments in this fictional shopping emporium like Gringotts Bank, Flourish and Blotts and of course Ollivanders wand shop. To get to this studio, you’ll have to travel a little way north-west out of central London to Watford, accessible from Kings Cross and Victoria train stations.

Just as spectacular in real life, Highclere Castle is the original and grand setting for the Grantham’s Downton Abbey stately home. On a Downton Abbey day trip from London, you’ll travel to Bampton, the village used in many Downton scenes. Enjoy the beautiful Cotswolds countryside before touring the setting of the many dramas that took place upstairs and downstairs. You'll get to view a selection of State rooms including the Saloon, Library, Dining room, Music room, Drawing room and Smoking room. You’ll also be able to walk up those famous stairs and look inside the former bedrooms of some of England's aristocracy. Wander around the beautiful gardens and take in the beautiful view of the castle.

Book yourself onto a Graffiti Tour and explore the city’s unique streetscapes across East London and beyond. Learn about world-famous Banksy as well as a host of other urban creators in this tour of East London’s street art. And the best part? This different thing to do in London is free.

One of the most unusual things to do in London, dare to take part in this walk. You'll be lead down Victorian alleyways as expert historians fill you in on all the gruesome details of the many crimes committed by this mysterious madman.

London is home to more than 7000 public houses which offer a traditional welcome to the city. Tour a few of them during a pub crawl organized by The London Pub Crawl company, including a great mix of modern pubs and plenty of traditional ale houses too. Get ready for a party, as this is a great way to celebrate a birthday in London.

If you're still looking for things to do, check out a bike tour with Fat Tire Tours in London and enjoy a leisurely cycle through the Royal Parks. If this list of unique things to do in London has inspired a trip to explore the unusual wonders of the city, then next up is to decide on the perfect unique Plum home in London to stay in. Whether you fancy one of our unique properties to rent in London to match your unique trip, or something a little more low key, we've got a collection to suit everyone. Our home critics personally vet each and every award-winning home on our site, so you're guaranteed a great stay no matter which one you choose. Here at Plum we're serious about standards, and we know you are too.