It is part of the Aztec Sun Stone (1519 AD). Take it there and return it. If you get the warrior mask from the far right, the guard will give you the Climbing Goggles for 1953 AD.
The colorful piece of stone (part of the Aztec Sun Stone) is on top of Edison's house (1877 AD). Return it to 1519 AD.
The Aztec Empire is where you get the sun stone piece on Time Tangled Island. It is 1519 AD the picture is a man with headdress.
The piece of the Sun Stone is from the Aztec kingdom at 1519 AD (5 o'clock on the time device).
Keep traveling and get stuff from people and look above every building possible.
The piece of the Sun Stone for the Aztecs in Time Tangled Island can be found in the past, in the Aztec Empire. You'll need to use a grappling hook to climb to the top of the Temple of the Sun and retrieve the piece from there.
The button to start the horseless carriage on Time Tangled Island is on the rear. Push it and the car will drive across to the right. You can climb the tree to the roof, where the Sun Stone piece is in the second chimney.
on the top of the tower thing.
The people at the second pyram
It's on top of Edison's roof in 1882 AD, where you return the phonograph. Bring it to the king at the Aztec time, 1519 AD.
the rest of the sun stone is where thomas Edison is its on the chimney of his house in time tangled. thomas Edison is in the 1877 AD. i hope this helped you!
You click on the engine which drives you by the tree. Climb up the branches of the tree to the roof and on thee left chimney is thesun stone piece.
on top of his work shop you will see a piece of the sun stone then take your time travel thing and go to the Indian place and give it to the guy beside the rest of the sun stone