No prizes for guessing where I’ve been tonight… The Millennium Dome, now the O2, Richard Rogers’s homage to the Festival of Britain’s Dome of Discovery. Its time-obsessed dimensions reflect the reason for its construction: 12 pillars, one pillar for each month of the year; 52m high, one metre for each week of the year; a diameter of 365m, one metre for each day of the year. And there’s that remarkable statistic that the 1mm-thick glass-fibre fabric of the roof weighs less than than the air contained within the dome itself, yet could support the weight of a jumbo jet.

In the furore over the Dome’s innards, it’s often forgotten that the building itself was constructed in just 15 months, and – at £43m – substantially under-budget.

It’s hard to believe that it’s twelve years since my family and I first visited the site, to see the much-maligned (though highly rated by 85% of actual visitors) Millennium Experience. We had a great time, though I recall that we were really rather baffled over what the unifying theme of the attractions was supposed to be.

I’ve returned quite a few times since, usually just to grab dinner when in London and nearby… which is exactly why I was there tonight!

I forgot my photo-a-day yesterday – oops – so here’s a picture of The Shard that I took earlier in the week. Little-known facts about The Shard include the fact that it’s tall, it’s located in London, and it has a lot of glass on it.

This is a bit of water shining in the morning sun in Hyde Park. I think it’s the Serpentine, but it might be Long Water – my understanding of the divisions of Hyde Park’s waterways would be exaggerated by calling it limited.

Anyway, something else has occurred to me as I’ve wandered round London these past few days – with so many sealed post boxes, where are our Olympic visitors supposed to post their official London 2012 postcards? Are there special boxes inside the venues?

This is my contribution to the internet’s wide collection of touristy photos of the Jubilympic Rings on Tower Bridge. They’re roughly the same size as those on the Tyne Bridge, but with five-times the price tag (true story!)

Since that’s a boring choice, here’s a sign that made both Wendy and I wince:

It’s actually a logo for a risk management firm, but immediately made Wendy and I think of diarrhoea and vomiting, outbreaks of which consume fair portions of both of our working lives!

Both of today’s photos come courtesy of suggestions from Wendy… so if you don’t like them, don’t blame me!

A few days ago, I mentioned the Royal Victoria Docks Bridge – and since I’m in London today, I thought I’d share a picture of it. As I said, it was built with the capability of running as a transporter bridge like the one in Middlesbrough, but this facility hasn’t been used.

Just a little way from that bridge is the new Emirates Airline. The consensus amongst Londoners that I know is that this is far more a tourist attraction than a serious transport proposal. As a tourist of sorts, I didn’t want to buck the trend, so I hopped on here, at the station on the North bank:

And here’s a pretty picture of the venue formerly known as The O2, but which the IOC now insists on us all referring to as the North Greenwich Arena:

But the most pressing question I had after my brief “flight” was: what’s in the box?

I assume it’s some sort of emergency equipment, but it’s a pretty small box. Do any of my well-informed readers know what’s in it? I’m intrigued…

Last time I was in this terminal, a couple of years ago or thereabouts, was not long after it opened. It’s far busier today than it was then, though the large number of seats means that it’s still easy to rest one’s feet.

I’m here today for a domestic flight, which probably makes me an environmental disaster. I did come down to London this morning by train, but the cost of a train journey back up to Newcastle today was almost twice the cost of the flight. Even though it isn’t me paying, I feel uncomfortable spending others’ money unnecessarily, so I made the cost-conscious choice.

Train travel’s both more convenient and more environmentally friendly, but the crazy train fare pricing structure priced it out of the market for me today. That’s something that should be rebalanced. Why not impose a rail levy on all domestic flights to support development of the more sustainable form of transport and reduce ticket prices on trains? There may be good reasons why that doesn’t happen, but perhaps it’s worthy of consideration?

The House of Commons authorities would be surprised if the clock tower fell into the Thames any time soon. It may well be raised with the Speaker on Monday. Given that Big Ben is situated over the Speaker’s apartments, he may have a view on it.

Thomas Docherty, a Labour MP on the Commons administration committee, according to this Sunday Times article.

I’ve been meaning to visit the Wellcome Collection for quite some time – I’ve been received the Trust’s newsletters via post for years. I finally found half an hour to pop in this morning, and would highly recommend it (though 30 minutes is clearly not long enough!). Above is William Cobbing’s Palindrome, an artistic expression of the fact that the pelvis and the skull are thought to share a common evolutionary bony ancestor.

And below, since I just couldn’t choose which photo to use today, is the complete human genome in printed form. Not only is it an impressive display of human achievement, it also provides a slightly depressing reminder of the relative weediness of the Y chromosome!

Both of these exhibits are from the Medicine Now exhibition, which is permanent, free, and well worth a visit.

No trip to London is complete without stopping off here to pick up supplies for my girlfriend: there’s nothing she likes better than a milk chocolate Ben’s cookie, with extra big chocolate chunks!

I don’t understand why Travelodge chooses to use these slightly threatening teddy bears to advertise hotels: if anything, it puts me off staying here!