See the Soho branch for a full description of the mini-empire that keeps on growing.

Over the years it has explored possibilities ranging from the installation of underground galleries beneath its sculpture garden to the purchase of another building in a different part of Manhattan for a satellite museum like the Guggenheim Museum's Soho branch, which opened in 1992.

The original Soho branch is among 20 outlets spread across London.

Call (44-20) 7479-4790 for the Soho branch, at 103 Wardour Street; (44-20) 7590-2400 for the Chelsea branch, 118 Draycott Avenue.

C Map Highly recommended, Hamburger Union delivers gourmet, calorific fast-food favourites to you in six smart and perennially packed central London locations, including a Soho branch.