Ferdinand Hayden led surveys of Yellowstone, and his team's paintings and photographs helped persuade Congress to protect the area. The 1872 designation made Yellowstone the world's first national park. His 1878 survey focused on mud pots, fumaroles and hot springs, and its engravings were made by Philadelphia lithographers from photographs. Because a photograph has to be translated into lines, dots and dashes, the engravers used crosshatching and stippling to capture the strange textures. The lithographs also reproduce the vivid colours that the team described: yellow, crimson and salmon streaks on white sinter. Published in 1883, the illustrations served as science, art and promotion at once.

Hampi is a UNESCO World Heritage Site in Karnataka, India, with more than 1,600 surviving remains spread over 4,100 hectares. It was the capital of the Vijayanagara Empire from 1336 to 1565. Travellers from Persia and Portugal described it as a prosperous, wealthy and grand city with temples, markets and farms along the Tungabhadra River. By 1500 it was estimated to be the world's second-largest city after Beijing, and probably India's richest at the time. In 1565 a coalition of Muslim sultanates defeated the Vijayanagara Empire, its capital was conquered and destroyed, and the city was left in ruins. Hampi remains a religious centre, with the active Virupaksha Temple at its heart.