If you have a lot of land to cover, build warriors or scouts first two items to get your pop up to shape... Then you should have plenty of reason to build settlers from all the land you've uncovered... Avoid making contact with any animals or such to save your explorers as defense when your first settler is built...
IF, you have a good food resource, it might be good to build a worker first turn... A worker will cost 22 or 23 turns... this is enough time for anyone to research wheel and (agri or animal hus) with 3 turns left over... With road already done, it'll usually take your worker 3 turns to draw the line to your food source... This will let them harvest whatever it is right off the bat...
While the worker is working away, your cap is still 1 pop... Build barracks (with the food source, hopefully cow, you should have a TON of hammers to finish that barrack ASAP...) by time you're done with your barrack, your worker should be on his way to build a road towards your next city... You should have a good spot mapped out by your scout or whatever else... Now is a good time to retrieve your scout or warrior to protect your worker on his way to the 2nd town... Once the road to the 2nd town is built, your town should be big enough to spurt out two or so archers with XP!!! (obviously you have to research archery during the time you are growing to pop 3)
Have one stay at your cap, and one at the new site... Your settler should be built in about 11 turns once you have two archers... You can ultimately sneak one in before building two archers if you have a warrior instead of a scout... The warrior should be good protecting against other barb warriors...
All the while your worker should be building roads to all resources near your 1st and 2nd towns... Once your settler plops down, it's time to build the improvements...
With this strat, you only really need one worker for a city the size of 3 or 4, because once your 2nd town is founded, all you do is pump out XP archers to fill your first two towns up two each, then pump out a settler accompanied by a archer from your cap to the new site... Then keep repeating two archer and one settler... This should all take about 18 or so turns for all three...
At the new site, I usually build a barrack to best start their growth... Once they reach pop three, they'll take over the army building and free up the cap to build the Stonehenge... Between then, it would usually be enough time to research the Stonehenge tech to allow me to build it...
If you lose in the first 30 turns, oh well... The long term benifits of a start like this is irreplaceable...