Greenwich, in southeast London, isn't the same as Greenwich Village in New York, USA. But it has its attractions and many of them are completely free. Some of the best views of London are seen from there, so it's worth a visit just for the photo opportunities. Some places may surprise you.
Greenwich Peninsula Ecology Park
The Greenwich Peninsula Ecology Park is a surprising slice of nature surrounded by development. It's an ideal spot to take the time-out from frantic city life. You can find it along the Thames Path, John Harrison Way, London SE10. This oasis has a nice boardwalk that takes you to bird hides. There's a library there, and if you have kids, they'll find the insect hotels interesting.
The National Maritime Museum
The National Maritime Museum is all about the history of exploration. Take a few hours for an interesting free visit. The museum focuses on England's seafaring past. Kids and adults will enjoy the displays. The museum is located in Romney Road, London, SE10 9NF and is open from 10 AM to 5 PM every day.