Greenwich: the Observatory to the O2
Time, tea, a ship in dry dock, and the strangest riverfront walk in London. Walked and written by the editor.

1. Royal Observatory
Don't do the planetarium unless you have kids. Do walk up the hill to the statue of Wolfe and stand on the meridian line for free.

2. Queen's House & Painted Hall
The Painted Hall is London's most under-visited masterpiece. Ten pounds, half an hour, ceiling by Thornhill.

3. Cutty Sark
You can walk right under the hull. It's cheaper outside than in, and arguably the better view.

4. Greenwich Foot Tunnel
Duck in for thirty seconds. The Victorian tile and the slight damp smell are very specifically London. Come back up the same side.

5. Trinity Buoy Wharf view
From the riverside path, look north. The lighthouse across the water is real and still working. That's your target.

6. The O2 plaza
Finish in the dome's outer ring. Noisy if there's a gig, peaceful at 4pm on a Tuesday. The Jubilee line takes you home in two stops.

Greenwich: the Observatory to the O2