| Your weekly Londonist roundup, featuring Londony news and features from the past seven days. A free installation worth catching a train to see. "Purple field, purple field..." "I don't want my Caribbean culture to fizz out." Image: Jim Grover Toy and chocolate museums, a Sylvanian Families shop - and a LOT of Wetherspoons. Image: duncan cumming via creative commons Frogs, salamanders and tortoises building the Crystal Palace! Image: GG Archard Now THIS is how to see London! (sponsor) I think this is the beginning of a beautiful friendship. Image: Tube Mapper Make the most of the sun. Image: Shakespeare's Globe An extract from Dan Glass's Queer Footprints. Image: iStock/tyannar81 900 members of staff striking on 25 May. Two geniuses lived one door - and two centuries - apart. A heritage expert sings the praises of these incredible stations. Barts Choir has been going since 1965. Image: Barts Choir | 