404. That’s an error.
The requested URL /bookmarks/mark?op=edit&bkmk=http%3A%2F%2Fwww.spectacle.co.uk%2Fspectacleblog%2Fbattersea-power-station%2Fworld-monuments-fund-watch-day-walk-battersea-power-station%2F&title=World%20Monuments%20Fund%20%22Watch%20Day%22%20Walk%20Battersea%20Power%20Station&annotation=%0D%0A%0D%0ANINE%20ELMS%3A%20ARCHITECTURAL%20WALK%0D%0ACOVENT%20GARDEN%20FLOWER%20MARKET%20%E2%80%93%20RIVERLIGHT%20SHOW%20FLAT%20%E2%80%93%20TIDEWAY%20VILLAGE%20HOUSEBOATS%20%E2%80%93%20BATTERSEA%20POWER%20STATION%0D%0A%0D%0ALead%20by%20Colin%20Thom%20of%20the%20Survey%20of%20London.%20With%20contributions%20from%20David%20Waterhouse%2C%20Stuart%20Tappin%2C
was not found on this server. That’s all we know.