The border between Belgium (we had to cross here from France as its a quicker route) and Luxembourg is identifiable by the former border buildings that now act as a rest point for vehicles and their drivers. 

Note that there are no services here, just a barrage of lorry drivers who couldn't be bothered to stop 5 minutes before (at least on the Belgium to Luxembourg side) at the real services to relieve themselves!

Incidentally there is a geocache on each side of the motorway, and fortunately for us the snow covering ensured we didn't venture anywhere that was being used as a public toilet!

Anyway...

When I was a kid I had one of those jigsaw puzzles with pegs, where you had to put the countries in the right places around Europe. Luxembourg was always the one that went missing as it was the smallest piece, and the name didn't even fit on it! Despite this, I have of course, in more recent years, been aware that Vatican city and Monaco are significantly smaller, and evidently too small to feature on a kids jigsaw puzzle perhaps. However, I thought Luxembourg would at least feature in the top 5 smallest countries list for Europe... but it turns out it's only no 7, measuring 2,586km2. By comparison Andorra, where I was just a few days ago, is just 468km2 and sits at no 6, and Vatican city (no 1) is 0.2km2.

More importantly, the stats for per capita GDP features Luxembourg among the worlds highest and unemployment is low with a high standard of living, which means the car is safe in a public car park here, thankfully!  

Parking up just North of the medieval Luxembourg City area, we noted cars from 6 other countries were also parked close by, so this place must be popular as well as safe. As soon as we ventured into the town, we could see why.  

Although it was below minus here and coated in snow, the locals seemed quite happy sitting around in the park which largely circles the city. The centre is where you will find the tourist information office and is a good place to start as they speak English (of course!). The locals speak Lëtzebuergesch but most also speak French and German too.

I would recommend picking up the free self guided walking tour map if you are short on time or prefer to take things at your own pace, but there are regular guided tours available from here, that seem quite reasonably priced.

There's a lot of history to read up on whilst here, but I was instead more taken with wandering the streets and admiring the fortifications that remain here; it would be as beautiful in the summertime as it is now in the snow, I'm sure.

We only had a couple of hours to take in as much as possible and experience how expensive it is - €20 for 2 filled baguettes and 2 cokes! However, I'm sure with some sensible planning it's possible to do a long weekend, or few days within a normal budget. After all, petrol is significantly cheaper than France - we overlooked this and had already filled up!