Best unusual vacation destination?

Do a number themed vacation. Pick a number, for example 13, and choose the 13th country in the world listed alphabetically, the 13th city in that country listed alphabetically, stay in a hotel that is numbered 13 on the street, etc etc.

These are some of things I've done on holiday,

Cleared and dug out a choked canal

Repaired a steam locomotive

Worked for the National Trust

Worked on an archaeological dig

Worked on a fossil hunt

Run around Salisbury Plain playing soldiers

Rendered, painted and decorated my mate's house in Greece

House sat for a friend of a friend who owns a mansion

......................but now I'm older, fatter and lazier - I just lie on the beach.