First you need to get Leonardo's journal which is in the statue of liberty place. After you return it to him he will give you a prototype of a glider. Once you get that, go to the vikings and put the glider on. you should be able to get up there. P.S. You get a viking suit if you get to the cliff.
go on top of the rock near the cave then jump
The Thor amulet for 831 AD is at the Great Wall of China (1593 AD), at the top right side. Below is a barrel of gunpowder that can blast open the rock cave at the Viking island, where you can recover the Gold Vase for 328 BC. (see related question)
at the top
on the top of the tower thing.
There is no viking suit. You just have to get the amulet and bring it to the vikings. The amulet is in china. You have to go to a guy on top of the big wall. Then you have to play a memory game.
On top of Mount Everest.
There is an axe and some armor at the top of the tall hill to the far right in 831 AD (the Viking time). To reach it, you will need the Glider Wings from Leonardo DaVinci (1516 AD, 4 o'clock on the time device). Climb to the top by the blocked cave, and leap up and right from the very edge. The Viking suit is an extra bonus, not a required item to be used on the island. (see related question)
The bonus sunglasses are on top of the tallest building.
It depends on which wall it is. Such as on the island Time Tangled where you have to get through the pile of rocks at the top of the mountain next to the viking ship. to get past that wall, you need to find the barrel of gunpowder in a different time period, then go back to the rocks and use it.
there isnt!!
On top of the building in the time next to the lab on the right(the first building).
you use your watch and push the top and then go to the blimp by david lansberry