Overall plan was to focus on war as much as possible, aiming for a relatively quick domination. I conquered the English and Aztecs with Chariot Archers, a Spearman (upgraded warrior), and had 1 horseman during the Aztec war. I completely wiped out these first 2 opponents - they cannot denounce me if they're dead!
I had previously agreed with the Huns request to go to war with Poland, so that's were I went after wiping out the Aztec. At turn 107, I had conquered 2 Polish cities, completed Chivalry and upgraded, made peace with Poland (2 cities and ~30GPT), and moved West to start working towards Lisbon. That main/Western army got Lisbon quickly and came back just in time for the peace treaty to expire and take Warsaw (also quick), then Attila's Court, which took slightly longer due to rivers and surrounding cities.
During the above wars, I built up a 2nd army that eventually went to the East end of the map, before declaring on the Greeks. I went over to the East because I thought attacking them from the North-West would have heavy casualties as I would have been squashed between Greek Expos and their 2 city state allies Lhasa and Kabul. I didn't have enough money to buy out the CS. I took 1 expo and Athens cleanly and made peace, but Alex would NOT give me open borders, so I went South through Kyzyl. The plan was for the Eastern army to take Cusco as the Western army took Attila's Court, but that failed.
Both armies were approaching Cusco at about the same time, so I had 19 Keshiks, 2 horsemen, 1 crossbow, and a Pikeman (with March) encircling Cusco. I had 6 great generals (though I disbanded one that just could not get around Kyzyl), so I did what any sane person would obviously do and made Attila give me his expo closest to Cusco and set up 5 Citadels around Cusco just for fun.
Cities
Moved East and built on the hill. 2nd city to the south surrounded by Salt. 3rd city south-east by the mountain; this one later built Machu Picchu, which was the only wonder I went for.
Aside from capitals (all puppets): I kept York to make a nice core of cities, Lodz as my base while conquering out West, and the Hun city near Cusco for my grand finale.
Build Order
Pretty sure I went Scout x2, Settler x2 starting at T9 (bought a Chariot Archer), then a late Monument, Chariot Archer or 2, library, national college, etc.
Expo 1: monument/library/chariot archers/etc.; expo 2: library/monument/chariot archers/etc.
Social Policies
Full Honour (right side first) and the Commerce opener, so only 7 policies selected.
Tech
Tech order was roughly left-side Ancient, then beeline Philosophy, horseback riding, currency, guilds or civil service, Chivalry...after that I just clicked on Banking, though near the end I got Sailing and Optics as I had a bottleneck of units coming to Cusco from the south through Kyzyl. To help me get my units through faster, I also allied with Kyzyl and declared war on Riga, so the Kyzyl units moved West.
Religion
Put no effort or (non-faith) resources into religion. London had Stonehenge, which is how I first started accumulating Faith, but I was actually too late to get a pantheon. I was able to get Pagodas in 2 of my first 3 cities; that's all I ever used Faith on.
Great Wall
Was not a problem, as it was in Cusco and I spent a total of 1 turn attacking the Inca.
We showed no respect to the Great Wall!