HM Bermuda: the fascinating story of an unsung engineering marvel

In the 1860s, British engineers faced a problem: Bermuda's porous limestone made building a traditional dry dock impossible, so they built a massive 8,000-ton floating dock in London and towed it across the Atlantic instead. Five warships hauled the 381-foot structure to Bermuda in 1869, where it served the Royal Navy for 30 years before being sold for scrap. Its rusting remains can still be seen today.