Portland is home to the nation's largest wooded urban park—Forest Park. A short hike in, and you'll find it hard to believe that civilization is just steps away. With 70 miles of trails winding through the forest and offering views of the Willamette River, you'll often have nature all to yourself. However, you're also likely to run into locals jogging or walking their dogs—expect to be greeted with a friendly "hello." If you have the time, hike up to Pittock Mansion, a stunning French Renaissance-style château that once belonged to Henry Pittock, a prominent publisher and businessman. Today, the mansion serves as a historic house museum open to visitors, offering panoramic views of the city. Another popular destination within Forest Park is the so-called "Witch's Castle"—the moss-covered ruins of an abandoned stone house. Despite its eerie name, there’s no record of witchcraft here. However, legend has it that its original inhabitant was the first person in Oregon to be sentenced to execution for murder in 1859.

The Underwater Observatory has big windows that look onto the underwater life outside Eilat’s top attraction which is a part of the Coral World marine reserve. There is also a fascinating museum, Oceanarium cinema and submarine dives.

Croatian towns and natural vistas were extensively featured in the hit HBO series Game of Thrones, many of the scenes from seasons 3, 4, 5 and 6 were filmed in Split. Follow the lead of a knowledgeable guide and discover where many of the scenes were shot. Don't miss out on the opportunity to take awesome selfies and feel not only the weight of hundreds of years of history but also that of the most influential pop-culture product of this millennium.

One of the island's UNESCO World Heritage Sites, the wondrous cliffs of Piana are best seen in the evening when the natural reds of the earth light up in the rays of the setting sun. Another way to see the cliffs is from the water, on a boat cruise in the Gulf of Porto.