Today’s our last day in Vienna. Tomorrow we have breakfast and head to the airport. I was incredibly exhausted today, but we trekked out to a small town outside of Vienna called Hinterbruhl. We took a tram, a train, and a bus to get there. It has a system of underground caves and a large underground lake called Seegrotte. It was incredibly cool, even if I was falling asleep half the time.

Read more on Travelogue: Vienna, Day 4…