Composed of 45,000 sheets of glass, the Palm House at Schönbrunn Palace Park in Vienna takes the cake as the largest glass house in continental Europe. Devised by designer Franz von Segenschmid and constructed by metalworker Ignaz Gridl in the 1880s, it is now a UNESCO World Heritage site. schoenbrunn.at
On the islands of Paros, Antiparos, Naxos, and Pano Koufonisi, you’ll find whitewashed hillside towns, hidden swimming caves, and pristine beaches. Here’s a taste of Greece’s unspoiled, lesser-known isles.
20 Reasons to Visit Greece's Unspoiled, Lesser-Known Isles