This is a Secret Item spoiler, if you want to find on your own read no farther. They are Not in any specific order.
Paititi, Peru Whale, near center.
Witches Market, Bolivia, Top hat, near broken wheel.
El Dorado, Venzuela, paintbrush, middle part near teddy bear
Munster, pirate flag, near Tavern sign
Natural Museum, pumpkin
Alpine Village, Police hat, corner of phone booth, very hard to see
Amazon River, octopus, near black & white Toucan.
Chitzan Itza, Saber, near left statue
Jailhouse, UFO, near moon
Pythagorean Society, castle, near eight-ball
Yakushima, Crow, near center
Angkor Wat Interior, Bonnet, center near skates
Hawiki, Ax, upper left
Femur Island, viking ship, near moving ship
Shambala, shoes, upper left
The Altar, rabbit, near statue
Inner Temple, compass, upper right
Door to Everest, bug near glasses on left side.
Hope this helps any one who likes to solve all the puzzles.