all over the world it's been especially popular among americans since the 1924 broadway had about all title bad. tooth musical what are more facts now from broadway in the musical became the longest running show in broadway history and lots and suddenly every american knew about heidelberg and for that was when this idea of the good old germany with its bad wrinkly students a little romance a little forging love captivated the american imagination. the castle is surrounded by an expansive park. with its exotic plants labyrinths and growing tones it was considered an 8th wonder of the world. that was in the summer months the castle takes center stage as the perfect backdrop