
This is one of the strangest tarmac roads in Britain: a 22-mile long single-lane cul-de-sac that simply stops dead at the end of Britain's most fjord-like loch, many miles from anywhere.
It's the road from near Invergarry, on the Great Glen Fault in northern Scotland, to Kinloch Hourn, at the top of Loch Hourn on the epic west coast. (See map - Kinloch Hourn is on the extreme right, the road going east from there.)
It's an astonishing cycle experience: three hours of quite awesome, remote scenery (right), with the road entirely to yourself. On a sunny day, like we had last weekend on our trip there, the panoramas are awesome: cobalt-blue lakes, royal-green hills, polished-mahogany sheep turds.
Apart from a handful of walkers heading for the virtually roadless hiking wilderness of Knoydart, and the odd service vehicle for the hydroelectric dam on vast Loch Quoich (right), you'll see no traffic at all. Kinloch Hourn itself has a campsite, one B&B, a cafe which may or may not be open when you're there. Your chances of mobile phone access are as narrow as the road in its long, steep ascent away from the shore.The prospect of cycling over 22 miles solely in order to turn back may not be attractive to everyone, but there are two ways to include the remarkable road in a linear trip. (We did it west to east to follow the tailwinds.)
The first is to cycle the rough but rewarding old pony track between the village of Corran and Kinloch Hourn. (The journey to Corran is a major undertaking in itself, probably involving a train to Mallaig, ferries to and from Skye, and a ride round the spectacular coastline of the Glenelg peninsula; or train it to Kyle of Lochalsh and cycle up and over the 350m Ratagan pass to Glenelg.) On a sturdy mountain bike that's no problem, but probably too uncomfortable on a road-touring bike with panniers. You'll bruise your bananas.
So your second option is to get Billy Mackenzie's by-appointment Arnsidale Ferry (above and right) between Arnisdale (next to Corran) and Kinloch Hourn (or wherever else you want him to take you). It's a half-hour trip on a thrillingly fast iron tub of a boat along a jaw-dropping sealoch, between the Glenelg and Knoydart peninsulas. It's reasonably priced too, especially given the remoteness and convenience (think of it as a water-taxi).
Once dropped off at the jetty near Kinloch Hourn, you can admire the very end of Britain's longest no-through-road (right), where it turns into a walking track.
Then you can cycle the extraordinary 22 ½ miles back to civilisation (ie pub) at Invergarry. The first mile or two is a steep uphill (right), too steep to cycle for most; from there you have no major climbs, and the trend is downhill after Loch Quoich.
The oddest thing about the road though is its lack of warnings where it starts, from the A87 in Glen Garry. Not even a 'T' sign, never mind Caution This Road Is 22 Miles Long And Goes Nowhere. Ah, another metaphor for life.

The most interesting thing about it was 

Anyway, this sign (right above and below) caught my eye while up in the land of my forebears. It's for the new cycle path between Mallaig and Morar, far up the north-west coast. Some people say educational standards are slipping in Scotland, but look - they've avoided the common mistake of spelling 'principal' wrong, so well done guys! There's an identical one at the other end of the cylcle pa... oh...

A notable feature of Euston Road is the underpass (right), which dives under the top end of Tottenham Court Road. It's one of those you hesitate to cycle into for fear you'll emerge, computer-game-like, somewhere else completely, such as Blackwall Tunnel or the planet Gliese 581d or Cumbernauld.
The underpass has a half-baked cycle path by-pass on the south side (right): one of those that, however clearly marked as a CYCLE PATH, proves irresistible to pedestrians with iPods.
Euston Road has a rash of rail stations - Euston, St Pancras, and King's Cross - as well as the
At the BL you can see on permanent display, for free, hundreds of original documents and papers of staggering rarity and value. These range from Shakespeare's credit card statements to Beatles lyrics sketched on exercise-books. There are also two copies of 
There's a tube station here, also called Angel, named after that original pub. But even more excitingly, the building next door to the original Angel is now a Wetherspoon's pub, also called the Angel (right). The railings outside form a handy bike park. 
And hooray for
Just to the right of these bikes is 'Platform 9 ¾', a jokey installation of half a trolley disappearing into the wall, in homage to the Harry Potter books. It isn't a bike parking facility. When you visit, you'll see some giggling Japanese students or posy American backpackers being snapped pretending to push the trolley. There's something appropriately make-believe and fantasy about the sign next to it, too, which promises more bike parking further up the platform (no there isn't) and on platforms 9 and 11 (no there isn't).
Right outside King's Cross, on the left overlooking the junction, there's the odd sight of a lighthouse.