Remember ... that time a German prince built an artificial volcano

Perrin Doniger of Smithsonian.com says: "When a 18th century German prince visited Mt. Vesuvius in Naples, he insisted on building a replica of it on his estate back home."

Leopold III Friedrich Franz, Prince and Duke of Anhalt-Dessau ... ruled a small kingdom near the modern-day town of Dessau in the 18th century. Born in 1740, Franz was an unusually enlightened ruler, even for the Age of Enlightenment. In his mid-20s, he went on a Grand Tour of Europe, a rite of passage for the continent's nobility.
Franz's travels took him to London, Paris, Marseilles, Rome, Venice and Naples, where the 27-year-old princeling was captivated by the smoldering Mount Vesuvius and the recent discovery of the buried Roman town of Pompeii.
"Vesuvius must have really impressed him, because 22 years later he came up with the idea to re-create the Gulf of Naples in flat Germany," says Uwe Quilitzsch, the Woerlitz Garden Realm's staff historian. "He saw himself as obliged to enlighten his subjects, and he saw this as a lesson for people who would never get to Naples."

That time a German prince built an artificial volcano