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Photo: Kleon3, CC BY-SA 4.0 via Wikimedia Commons
An 18th-century folly built as a memorial to Sir William James by his widow. Today you can climb the 86 steps to the top of the castle for amazing views over London and seven different counties.
Severndroog Castle is a folly designed by architect Richard Jupp, with the first stone laid on 2 April 1784.
© OpenStreetMap contributors
Completed in 1612, the finest and best preserved Jacobean mansion in London.
One of the most notable art deco buildings in London which was built and owned by the Courtaulds family of textile fame. Administered by English Heritage.
They play soccer in the Championship, England's second tier. The women's team play in the Championship, their second tier, at Bexleyheath in Dartford.
Let off some steam for a couple of hours with laser tag or paintball at an underground Cold War themed bunker in part of industrial Greenwich. Great for kids (or just your inner-kid!). Next to the Thames Barrier - which keeps the city safe from flooding - be sure to go and take a look at this giant structure in the river whilst you're here.
Concert Hall
Every Guy Fawkes night (5th of November) Lewisham council put on a spectacular free fireworks display. In the past few years crowds of over 100,000 have amassed, so arrive early to secure a good spot. The heath also hosts funfairs and circus at various times of the year.