Open House Festival is happening this week- explore hidden spaces, iconic buildings & secret spots across the city, all for free! 📅 13–21 September 2025 📍Across London @opencity_uk @thecityofldn #VisitLondon #OpenHouseLondon #HiddenLondon #LondonArchitecture #londonhiddengems #londonhistory #historiclondon #londonguide #openhouselondon #openhouse2025 #thingstodoinlondon #londonrecommendations #behindthescenes #secretlondon #hiddenlondon open house london 2025 | open house festival london | hidden gems london | secret london buildings | unique things to do in london | non touristy london | london once a year events | best free events london | london architecture festival | london hidden spots | open house weekend london | unique experiences london | london local secrets | off the beaten path london | london free entry events | discover london like a local | london secret tours | rare things to do london | london annual events 2025 | london historic buildings open
Attraction
Royal Courts of Justice
Courthouse
4.5
Ornate, Victorian Gothic building, opened in 1882, with a high-ceilinged great hall & law courts.
Queen Elizabeth Olympic Park
Park
4.5
Bridges, wildland & play parks weaving a latticework around London's 2012 Olympic venues.
The Law Society Hall
Event venue
4.4
HMS Wellington
Historical landmark
4.5
Museum, library and events venue in a WWII merchant navy sloop, moored on the Thames since 1948.
The Maughan Library
Library
4.6
Activity/Tour
Covent Garden’s Hidden Gems: A Self-Guided Walking Tour
Activity
3.8
Place
City of London
Landmark
Whitechapel
Landmark
Museum/Gallery
Dr Johnson's House
Museum
4.5
Writer Samuel Johnson's restored 300-year-old townhouse, with period artefacts & a notable library.