What would the most beautiful sight in a video game be for you?

Here are my nominations:
Stronghold Crusader: Seeing an enemy castle consumed by flame.
Half Life 2: Your first introduction to Alyx Vance. Every other time you see Alyx is a runner-up.
Dawn of War: A Baneblade tank belonging to you.
Command & Conquer 3: A Nod nuke belonging to you going off.

In game-Mass attack with IG
Trailer-First Halo 3 trailer when you see Master Chief has the Assualt Rifle

When you return to an area in Ninja Gaiden and you see all the bodies. It gets no better than you thinking 'Ahhh I did that.'

The jungle level in halo 3. Damn thats some good lighting. Also, unlocking sonic in super smash bros. brawl.

The helicopter that comes to rescue you at the end of One Shot, One Kill in Call of Duty 4.
The train station after Ravenholm in Half-Life 2. Oh, evil murderous cyborgs, how I missed thee.
The cut scene at the end of Cortana in Halo 3.

First seeing the outside world in Oblivion. I actually just stood there for a few seconds, taking it all in.

Seeing the island for the first time in Far Cry with graphics riiiiiiiight up. Pretty mind blowing when it was first released, all that foliage, birds and purdy, purdy water. Then you get shot by the oddly psychic mercenaries. Beautiful.

Riding a dropship in Planetside in a mass assault and seeing 200+ players all hotdrop out at the same time into a mass tank battle. Imagine one of the biggest setpieces you've ever seen in an FPS - vehicles and soldiers everywhere, things exploding and gunfire filling the air. Now imagine those people were all players and you were for once, actually only a small cog in a massive war machine instead of the usual super soldier/rambo figure. Immense.

Seeing a Bloodthirster and support troops tear apart entire squads in DoW. Awesome.

The moment you arrive in Shadow Moses in MGS4, seeing it in the new graphics (Never played Twin Snakes).
On top of the castle in Ico.
First time you see a colossus in SotC and you think "Wow, I didn't think they were that big"
Seeing a bunch of striders marching your way in HL2.
When you land on the halo in the original game. Priceless.
Watching how Ares is destroying Athens in God Of War one.
The special effects whenever you beat the final boss of a Final Fantasy game.

I could go on and on...

Eagle Est1986:
First seeing the outside world in Oblivion. I actually just stood there for a few seconds, taking it all in.

That is exactly what i wanted to post.
I have not played many games that came after Oblivion, like Crysis or Stalker, because my Computer broke.

Thinking about it, your army of Zerglings and Hydralisks destroying the enemy base in an online session of Starcraft-Broodwar might be even more beautiful, in a different way.

Bosses in general. I bloody love boss battles (excluding Bioshock - That boss was terrible)

Note: This is biased as I'm playing Twilight Princess at the moment, those bosses are rather cool.

Juan Regular:
When you land on the halo in the original game. Priceless.

I concur.

Starcraft - Nuclear Launch Detect.....Nuclear Launch Detected (*2 Nukes drop) BOOOOOOBOOOOOOOOOM!! Because 1 Nuke just isn't enough to completely ravage the shit out of everything.

7th Legion - Self Destruct. There were 4 buttons on the lower left corner of the screen. If you pressed them all, every single one of your buildings would self-destruct in rapid succession.

Mega Man X2 - Bubble Crab's Stage. Despite the limited technology of the SNES, the rocky cave with the sunset in the background is awe inspiring.

Super Smash Bros. Brawl - Subspace. Oooh. Purdy colours.

The Legend of Zelda: Ocarina of Time - Hyrule field. Gotta love them sunrises/sunsets.

Level 5 on Rez - I wish I could watch myself play it.

In lots of old skool games the most beautiful sight in the world is a health pack.

So many places of Shadow of the Colossus...If I have to pick a favorite, I'd say within the battle with 13th Colussus (flying sand dragon(?))

Supreme Commander - Watching a MonkeyLord (or 3) march through an enemy base annihilating anything that dares to move near it.
For anybody wondering the MonkeyLord is the giant spider with the laser on top.

Rez - Most of the bosses particularly on level 3 and 4, they just look awesome.

Chrome Hounds - Loading your Hound with 10 full racks of rockets, then unloading them all at once, watching the massive flames appearing around your screen as all your enemies explode soon after, the flames clear, second round of rockets, what's not to like?

Shall we just go ahead and say that all of Rez is beautiful?

the most buetifull site ever

Final Fantasy XI - Finally getting access to the Tavnazian Archipelago. Lufaise is one of the prettiest areas I've ever seen in any video game ever.

Watching your team explode in Halo 3 after they score a point in Grifball! :D

I'll third the Oblivion thing. It was the first game I'd got for my new PC, and I hadn't played any PC games for years. So I load it up, and as I'm wondering around the dungeon, I'm thinking, 'Well, I suppose this is quite pretty...', and then you open up that door. I spent the next hour or so chasing butterflies and paddling in streams like some mediaeval nancy-boy.

Also, the trip down to Rapture in Bioshock left me pretty awestruck.

I didn't chase butterflies or anything, but about 5 minutes after i got out of the sewers and I was still wandering around, the Sun started to set. Beautiful.

A save point.

Flying around for the first time in Dragon Quest VIII was quite amazing.

The end cinnematic of Warcraft 3, the frozen throne. Arthas puts on the Lich King's helmet while the cavern collaspes around him, then it all blows up and it's just him sitting on top of this giant spire of ice.

It's not beautiful, per say, but still pretty awesome.

Final cutscene fight in 'Drakes Fortune' (on the tanker). Amazing.

Also walking/crawling through the microwave hallway in MGS4 and watching the three seperate battles being waged above you. Powerful

Flying around Hogwarts on Buckbeak's back during the winter in the Prisoner of Azakaban game. I did it for hours; the music, graphics and general feel were simply amazing.

J'aen:
The helicopter that comes to rescue you at the end of One Shot, One Kill in Call of Duty 4.

i concur, a beautiful sight.

but i would have to say getting your car shot up by the cops in gta4. pulling away with that single shotgun (pellet?) spread in your passanger door for the first time, it was purty.

More beautiful than the above: A teabagger getting headshot.

J'aen:
More beautiful than the above: A teabagger getting headshot.

Agreed good sir

Takatchi:

WarCraft 3 Spoilers!

Oblivion, slowly wandering north and watching the leaves shift from green to gold.

In fact, pretty much Oblivion in general.

battlefield: bad company on live.being the attacking side,getting on the artillery and blowing up the building your enemy was about to hide in.

sicDaniel:

Eagle Est1986:
First seeing the outside world in Oblivion. I actually just stood there for a few seconds, taking it all in.

That is exactly what i wanted to post.

Me too. I was so tired of walking around in that dark, gloomy castle dungeon, so stepping out into the bright and beautifull outdoors, gazing down at the river, seeing the mountains and a butterfly flying by was nothing but breathtaking.

When you discover cool "set pieces".

Something like in a FPS game where you come across a secluded perch overlooking lots of bad guys crowded around a explosive barrel.