U-23 Uboat Submarine Wreck

Turkiye Shipwrecks, Turkey Ship Wrecks

The Great Canadian Model Builders Web Page!: U Boot Typ IIB U-23

Close to Home: Exploring a German U-Boat Sunk off U.S. Coast (1940-1942)

WWI German U-boat found off Belgium with 23 bodies inside

The mystery of the sunken U-246 boat off the coast of the Isle of Man

The history of submarine warfare off the Jersey coast - WHYY

The Tragic Story Behind A Perfectly Preserved WW2 U-Boat Wreck, The Lost Submarine

Wreck of the U-352

WWI U-boat sunk by Royal Navy surveyed for the first time - BBC Science Focus Magazine

Discovery of U 26

U-23 Uboat Submarine Wreck

TIME TRAVEL: 39 images of recovered U-Boat U534