What it is, what to see and when to go.
Greenwich is a riverside town in south-east London and a UNESCO World Heritage Site, built around Britain's naval history and the measurement of time. Its main sights sit together between the Thames and Greenwich Park, so you can cover them on foot in a day. Arrive by river and you step off the boat beside the Cutty Sark, with the domes of the Old Royal Naval College directly ahead.
The Cutty Sark, a tea clipper launched in 1869, is raised in dry dock so you can walk beneath its hull. At the Old Royal Naval College, Christopher Wren's riverside buildings, the grounds and chapel are free, while the Painted Hall needs a ticket. Its ceiling, painted by James Thornhill over nearly 20 years, is often called Britain's Sistine Chapel.
Behind the college, the National Maritime Museum and the Queen's House, Inigo Jones's classical villa with its spiral Tulip Stairs, are both free. Climb the hill through Greenwich Park to the Royal Observatory, founded in 1675, where a ticket lets you stand astride the Prime Meridian; the view of Canary Wharf and the City from the top is free. Finish at Greenwich Market, a covered market with food stalls and makers.
When to go: weekdays are quieter; weekends bring the fullest market and longer queues at the Observatory. Allow a full day and arrive by 10am. Stations: Greenwich has no Tube station. Use Cutty Sark for Maritime Greenwich (DLR), Greenwich (DLR and National Rail) or Maze Hill (National Rail). The nearest Tube is North Greenwich (Jubilee line), a bus ride away. Thames Clippers boats from Westminster and Embankment stop at Greenwich Pier.
Ships, palaces and the home of Greenwich Mean Time.

Straddle the Prime Meridian with one foot in each hemisphere, then take in Thames views from the hill. Inside, historic timekeeping and astronomy…
2Step aboard a 19th-century tea clipper built for speed and wander her decks in Greenwich, beside the Thames. Stand beside one of the fastest ships…
3Stroll 74 hectares of former hunting park, then climb to the hilltop Royal Observatory and straddle the Prime Meridian. Views sweep over the…
4Painter James Thornhill worked on this ceiling for nearly 20 years. Painted columns and steps trick the eye into a far grander room. Most people…
5Britain's first geometric self-supporting spiral staircase Free to climb, in Greenwich's Queen's House Very photogenic, especially when you look…
6The world's only museum devoted entirely to hand fans. A Japanese-style garden to walk through once the fans are done. An orangery adds a bright,…
7Tilt your head back beneath the Painted Hall's ceilings, then step outside to watch the Thames slide past the grand riverside buildings.…
8Trace Britain's seafaring past through galleries full of ships, charts and sailors' stories in Greenwich. General entry is free, so you can wander…
9Wander through a former royal retreat designed by Inigo Jones, where the Great Hall once showcased a ceiling painted by Orazio Gentileschi. Then…
10Under one roof in the heart of Maritime Greenwich, makers sell crafts and antiques beside street food stalls, open every day. Pair it with the…
Calmer and often cheaper than central London, about 20 minutes from Bank by DLR. See hotels on a map with live prices.
Museums, landmarks and hidden gems on one map, plus 17 day trips.