London is a city of nearly 9 million people built along a 25-mile
bend of the River Thames, with two thousand years of layered history
inside the Circle Line. The Romans founded Londinium here in 43 AD;
the City of London — the original square mile — still operates under
a separate medieval charter from the rest of the metropolis. Greater
London now sprawls across 32 boroughs, but the core a school group
walks (Westminster, the South Bank, the City, Bloomsbury) sits
inside a four-mile rectangle a Tube ride wide.
For a student group, London is the deepest humanities visit on our
British Isles catalog and a natural anchor for any first-time
educational travel program. The British Museum, the National
Gallery, the Tate Modern, and the V&A are all free; Parliament,
Westminster Abbey, the Tower, and the Globe Theatre stack a full
high school history curriculum into a single walkable week. London
pairs cleanly with Paris by Eurostar or with Bath, Stratford, and
York for a teacher-led high school group trip that covers the
whole island.