Selected galleries of the British Museum are open until 8.30pm every Friday evening, augmented by tours, special events and food and drink. En savoir plus .
Design Overtime takes place irregularly every few months, when the museum opens from 6pm to 10pm for talks and workshops based on the current exhibitions En savoir plus .
The National Gallery is home to more than 2,000 works, with masterpieces from virtually every European school of art. Weekly late-night opening is on Fridays until 9pm, with tours, talks and music. En savoir plus .
The National Portrait Gallery is open until 9pm on Thursdays and Fridays En savoir plus .
On Fridays the Royal Academy stays open until 10pm (last admission 9.30pm). En savoir plus .
Tate Modern gets all the attention, but the original Tate Gallery has a more inclusive brief. It opens until 10pm every Friday and Late at Tate Britain takes place on the first Friday of each month. En savoir plus .
Tate Modern does weekend after-hours gallery-going extremely well, opening till 10pm on Fridays and Saturdays. En savoir plus .
Selected galleries remain open until 10pm on Fridays. Friday Lates, held on the last Friday of the month (except December), comprise mostly free, drop-in events, workshops and entertainment until 10pm En savoir plus .
Attraction showcasing weird and wonderful items from around the world. It's open 10am-midnight daily (last admission 10.30pm) En savoir plus .
The Barbican Art Gallery is open 11am-10pm on Thursdays, with talks, screenings and other events. And it’s open till 8pm during the rest of the week, too (except Wed: 11am-6pm). En savoir plus .
The house that was Handel's home between 1723 and his death in 1759 is now a museum devoted to the composer's life. Weekly late opening is until 8pm on Thursdays, with concerts from 6.30 to 7.30pm. En savoir plus .
The ICA programmes arthouse cinema, performance art, philosophical debates, art-themed club nights, and cutting-edge bands. The galleries are open noon-9pm on Thursdays during exhibitions. En savoir plus .
Somerset House features a formidable art gallery, a beautiful fountain court, a terraced café and a classy restaurant. The courtyard and fountains are open until 11pm in in summer. En savoir plus .
This swanky little museum houses a fascinating and often grisly medical collection. The galleries are open till 10pm on Thursday evenings, often accompanied by talks. En savoir plus .
This East End stalwart reopened in 2009 following a major redesign and expansion. The weekly late opening of the galleries is on Thursdays, until 9pm. En savoir plus .
The Women's Library houses a major collection of women's history including books, magazines, posters and photographs celebrating the women's lives they document. It opens until 8pm on Thursdays. En savoir plus .
The popular Science Museum Lates take place on the last Wednesday of the month, when adults can explore the galleries free from noisy kids. En savoir plus .
This north London gallery is in somewhat of a hinterland (it’s nowhere near Camden) but is also well loved for its consistently good galleries. It's open late weekly on Wednesdays, 10am-9pm. En savoir plus .
The garden is open from April to October, with late-night openings until 10pm (last entry 8.30pm) on Wednesdays in July and August. En savoir plus .
On the first Tuesday of each month, the museum opens late (6-9pm, last entry 8pm), and the rooms are lit by candles. Visitor numbers are generally high on these evenings, so early arrival is advised. En savoir plus .
The British Library's exhibition spaces are open late weekly on Tuesdays, from 9.30am-8pm. On show are temporary displays as well as permanent exhibits in the John Ritblat Gallery. En savoir plus .
