Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Heidelberg, located along the scenic banks of the Neckar River in southwestern Germany, is a city steeped in history, culture, and charm. Known for its prestigious university, which is one of the oldest in Europe, the city draws visitors with its picturesque old town, medieval architecture, and vibrant academic atmosphere.

Silistra, a charming city located on the southern bank of the lower Danube River in Bulgaria, is a hidden gem that seamlessly blends ancient history with natural beauty.

Kolkata, often referred to as the "City of Joy," is a mesmerizing blend of rich history, culture, and artistic heritage that makes it a must-visit destination for any traveler to India. Once the capital of British India, Kolkata retains much of its colonial-era charm with iconic landmarks like the Victoria Memorial, a stunning marble building surrounded by lush gardens, which now serves as a museum showcasing the city’s colonial and Indian history.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.