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.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

Nosy Be, often called the “Perfume Island” due to its fragrant ylang-ylang trees, is Madagascar’s largest and most popular tourist destination. Situated off the northwest coast of Madagascar, this tropical paradise boasts powdery white sand beaches, turquoise waters, and lush inland rainforests, making it an idyllic escape for beach lovers, nature enthusiasts, and adventure seekers alike. Nosy Be is renowned for its stunning marine life.

The Darvaza Gas Crater, famously nicknamed the “Door to Hell,” is one of Turkmenistan’s most extraordinary landmarks. Located deep in the Karakum Desert, this fiery pit has been burning continuously since the early 1970s, when Soviet engineers reportedly set fire to a collapsed natural gas field to prevent the spread of methane.

Custer State Park, nestled in the Black Hills of South Dakota, offers a tapestry of natural beauty and wildlife. Known for its scenic drives and outdoor activities, the park is a haven for nature enthusiasts and adventure seekers alike. One of its most famous routes, the Needles Highway, weaves through towering granite spires and narrow tunnels, providing breathtaking vistas of the rugged terrain.