Fontana Boathouse in Buffalo, New York

This boathouse, commissioned in 1905 for Cudworth Beye, a friend of Frank Lloyd Wright's, wanted a boathouse for the University of Wisconsin crew tea—in Buffalo, New York.

The structure featured Wright's very first perfectly flat roof, and was the only boathouse he ever designed. However, a lack of budget on the students' part led to it never being built. While Wright did finish the plans, it was never built in Wright's or even Beye's lifetime, and for a long time it remained the only unbuilt building in Wright's famous Wasmuth Portfolio, a German book containing multiple works of his that first skyrocketed his popularity across the world.

Luckily, in 2007, construction began on this beautiful structure, with the assistance of one of Wright's apprentices. Today it not only serves its original purpose as a place for a boating group (The West Side Rowing Club nowadays), but it also holds weddings and tours, of which there is more information on its website. It's a hidden gem in the shadows of other Wright-designed buildings in Buffalo, like the Darwin D. Martin House.