Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.

Ol Doinyo Lengai, often called the "Mountain of God," is an active volcano located in northern Tanzania and is a must-visit for adventurous travelers. Towering over the Great Rift Valley, this majestic peak is unique due to its lava composition. Unlike most volcanoes that produce molten lava, Ol Doinyo Lengai emits natrocarbonatite lava, which is unusually cool and flows like water. This rare phenomenon makes it one of the most intriguing volcanic landscapes on Earth.

São Tomé & Príncipe, a two-island nation in the Gulf of Guinea, is one of Africa’s smallest yet most captivating destinations. Known for its unspoiled landscapes, it offers lush rainforests, volcanic peaks, and secluded beaches.

Cagliari is Sardinia's capital and largest city. Several civilizations have left their imprint here architecturally and culturally. Must-sees include the Museo Archeologico Nazionale di Cagliari, with its Roman and Byzantine treasures, as well as Castello, a medieval quarter situated on a hill above the city. The city is also known for its food and vibrant nightlife.

This thriving port city has so much to offer, including several museums, the beautiful historic quarter Porto Antico and La Lanterna. This lighthouse is Genoa's best known landmark and provides stunning views over the port and bay.