This weekend London is once again taking part in the Museums at Night event (yes, this is the first year it’s being held over two weekends – the first was back in May). In honour of that milestone, we thought we’d take the time to list five of the quirkier places that are taking part this time around, either tonight or on Halloween itself…

• The Marvellous Mysteries of Hackney Museum at Night. An interactive and “creative making” tour of the museum and local surroundings (be prepared for some walking!).

• The Monument, City. Ascend the spiral staircase of 360 degree views of the City and hear stories about the Great Fire and its aftermath and Hookes’ telescopic column.

• Osterley Park, Isleworth (pictured). Explore the Georgian house and discover some of the darker bits of Osterley’s 400-year-old history.

• The Fan Museum, Greenwich. Take a look at its latest exhibition ‘Made in China’ which features a display of 8o fans and “traces the evolution of Chinese export fan design from its emergence toward the end of the seventeenth century to its eventual decline in the latter part of the nineteenth century”.

• Severndroog Castle, Castle Wood. Take a candlelit tour on Halloween including the chance to take in the vistas from the viewing platform. The tearooms are also opening.

For details of all London events – some of which are free – check out www.museumsatnight.org.uk and search under ‘London’.