Tram
A tram is an urban rail transit type in which vehicles, whether individual railcars or multiple-unit trains, run on tramway tracks laid on public streets, although some trams run on sections of track in their own segregated right-of-way.

A tram is an urban rail transit type in which vehicles, whether individual railcars or multiple-unit trains, run on tramway tracks laid on public streets, although some trams run on sections of track in their own segregated right-of-way.
Check the official site before travelling; hours and prices can change.
More markets

Borough Market
London's defining food market — go early Saturday, eat your way around the perimeter.

Columbia Road Flower Market
Sunday-only flower market in the East End — 8 a.m. for choice, 2 p.m. for prices.

Maltby Street Market
Borough's smaller, scruffier sibling — railway arches, weekend only.
Source: wiki-list