Photo of the day

An American soldier relaxes with a newspaper after the Allied liberation of Rome on June 4, 1944. This is from WWII: Italian Campaign

Franklin historian Tom Gross fixes a broken tire on one of the ATVs during the journey in search of Sir John Franklin's lost tomb on King William Island, Nunavut, Canada. This is from Explorer: Lost in the Arctic

After months of being stranded on the beaches of Anzio, American forces prepare to break through. This is from WWII: Italian Campaign

Endrick Garcia-Torres and Savdiel Ducret-Santana work on their science fair project in San Juan, Puerto Rico. This is from Science Fair: The Series

A crew member stands on a chunk of ice looking out over Pasley Bay, Nunavut, Canada. The team is on a journey to search for Sir John Franklin's lost tomb on King William Island, Nunavut, Canada. This is from Explorer: Lost in the Arctic

Albert Lin, Luigi Marmanillo and Jeff Contreras paddle on their a raft while traveling through calm waters of the Marañon River during his quest to find an ancient trading route used by the Chachapoya people in Peru. This is from Los Cities Revealed with Albert Lin

Carlos Ochoa-Marquez works in his school's greenhouse in Monte Vista, Colo. This is from Science Fair: The Series

An American soldier fixes his bayonet in preparation for possible close-quarters combat during the Battle of Anzio. This is from WWII: Italian Campaign

Erin Gaydar laughs while seated on top of a tech box being pulled by other science fair attendees in Lakeland, Fla. This is from Science Fair: The Series

Lindsey abseils down the Dunnicaer sea stack in Scotland, as they team searches for the lost city of the Picts. This is from Los Cities Revealed with Albert Lin

Phefo snarling. This is from Savage Kingdom

The boat's crew work to free the Polar Sun from the ice in Pasley Bay, Nunavut, Canada. The team is on a journey to search for Sir John Franklin's lost tomb on King William Island, Nunavut, Canada. This is from Explorer: Lost in the Arctic

Albert Lin and Lindsey build a fire at dusk outside Sculptor's Cave, Elgin, Scotland, as they search for the lost city of the Picts. This is from Los Cities Revealed with Albert Lin

Zebras at a water hole. This is from Savage Kingdom

Adolf Hitler decorating soldiers who returned from the Russian front. This is from Apocalypse: The Fall of Hitler

Albert Lin crosses the River Spey carrying a Go-Pro attached to his backpack, as he searches for the lost city of the Picts. This is from Los Cities Revealed with Albert Lin

The medical room of the bunker. This is from Apocalypse: The Fall of Hitler

Chloe Hines waits for the results of the Colorado State Science and Engineering Fair in Ft. Collins, Colo. This is from Science Fair: The Series

Portrait of Phefo. This is from Savage Kingdom

Khutlo being punished by older Hyena. This is from Savage Kingdom

"Anzio Annie," a massive German railway cannon, elevates to fire on Allied positions. This is from WWII: Italian Campaign

Explorer Mark Synnott poses for a portrait in King William Island, Nunavut, Canada. He is part of a team searching for Sir John Franklin's lost tomb on King William Island, Nunavut, Canada. This is from Explorer: Lost in the Arctic

Albert Lin and archeologists El Hassan Ahmed Mohammed and Geoff Emberling are pictured in Jebel Barkal, Sudan, as the team tackle the scorching desert, in search of Napata, the capital city of the Kingdom of Kush, a powerful, 8th century African civilization in Sudan. This is from Los Cities Revealed with Albert Lin

Gretl Braun laughing surrounded by German Generals and musicians on her wedding day. This is from Apocalypse: The Fall of Hitler

The Polar Sun sails among glacial formations in the Arctic, heading to King William Island. This is from Explorer: Lost in the Arctic

American soldiers of Japanese ancestry from the 100th Infantry Battalion rest on the streets of Leghorn, Italy on July 19, 1944, after an advance by the Fifth Army which ultimately captured the seaport. This is from WWII: Italian Campaign

Students of Monte Vista High School eagerly await the results of their regional science fair competition in Monte Vista, Colo. This is from Science Fair: The Series

Portrait of Khutlo. This is from Savage Kingdom

German tanks advancing in line before the Kursk battle. This is from Apocalypse: The Fall of Hitler

Lightning behind giraffes. This is from Savage Kingdom

Hitler observing a big weapon. This is from Apocalypse: The Fall of Hitler