Theodore Scott/Wikimedia Commons
PA Archive
Jonathan Brady/PA Archive
Matej Kastelic/Shutterstock
Alexander Tolstykh/Shutterstock
Nir Alon/Zuma Press/PA
Courtesy Israel Antiquities Authority
Library of Congress/Wikimedia Commons
Bjoern Wylezich/Shutterstock
Courtesy Mel Fisher's Treasures
Courtesy Mel Fisher's Treasures
La Salle's Expedition to Louisiana in 1684, 1844, Jean Antoine Théodore de Gudin/Wikimedia Commons
Courtesy Bullock Texas State History Museum
Courtesy CFP
Courtesy CFP
Courtesy Odyssey
Courtesy Royal Mint
Everett Historical/Shutterstock
Joseph Nichols/Wikimedia Commons
Jjsala/Flickr CC
Theodore Scott/Wikimedia Commons
Andreas Neumeier/DPA/PA
Shutterstock
Martin Bahmann/Wikimedia Commons
Zaferkizilkaya/Shutterstock
PD-1923 Ancient Origins
Courtesy Mel Fisher's Treasures
Four Frigates Capturing Spanish Treasure Ship, 1804, Francis Sartorius/Wikimedia Commons
Jacinta lluch Valero/Wikimedia Commons
Explosion of San José, 1708, Samuel Scott/Wikimedia Commons
Myotis/Shutterstock