While on a visit to the Anacostia Museum of the Smithsonian Institution, Emma finds herself as a runaway slave using the Underground Railroad to make her way to freedom in Canada.
While visiting the Origins of Western Cultures exhibit at the Smithsonian's Museum of Natural History, Tomas finds himself back in time, competing in the Olympic Games in ancient Greece.
While visiting the Amelia Earhart exhibit at the National Air and Space Museum, Lucy travels back in time and becomes the famous pilot in the cockpit of her last flight.
While on a field trip to the National Museum of American History, nine-year-old Lucy imagines herself as Andrew Russell, taking a picture of the joining of the Central and Union Pacific Railroads at Promitory Summit, Utah, in 1869.
While on a field trip to the National Museum of American History, Emma imagines that she is her grandmother, sitting with her family listening to the radio as the end of World War II is announced.
During a field trip to the Smithsonian's National Air and Space Museum, Lucy and Kevin time travel to the 1975 Apollo-Soyuz Test Project and find themselves as Alexei Leonov and Thomas Stafford enacting the historic first rendezvous in space.
While on a field trip to Smithsonian's Museum of Natural History, Kevin imagines himself taking part in the final stage of the construction of the Great Pyramid near the Egyptian town of Giza more than 4000 years ago.
While visiting the Pony express exhibit at the National Postal Museum, Kevin travels back in time and becomes Warren Upson, a famous rider with a difficult route.
While visiting a whaling exhibit at the Museum of Natural History, Emma suddenly finds herself transported back in time to a nineteenth century whaling ship.
