=Y= Yak 256 Yale University 605-606 Yam 131 Yellowstone Falls 83 Yellowstone National Park 586 Yew Tree 165 Yokahama 689 Yosemite Falls 83 Yosemite Valley 585 =Z= Zama, Battle of 391 Zebra 203 Zebu 256 Zinc 115 Zwinger, The, Dresden 503