The architectural folly known as the Koffeihaus (Coffee House) in the Boboli Gardens behind the Palazzo Pitti. The Coffeehouse was built by Maria Theresa while she was the Grand Duchess of Tuscany (she would later become the Hapsburg Empress of Austria-Hungary). The name comes from its purpose- it was a refreshment center for visitors to the gardens to stop and get a coffee or tea or other beverage - exploring the 110 acres of the Boboli Gardens is thirsty work.