The Philadelphia Zoo holds the distinction of being America’s first zoo, having opened its doors in 1874. It attracted over 228,000 visitors in its debut year and remains one of the city’s prime attractions, now welcoming around 1.2 million visitors annually. Home to more than 1,300 rare and endangered animals, the zoo is renowned for its innovative exhibits, such as the Zoo360 animal exploration trails. Visitors can also enjoy unique experiences like swan boat rides, camel safaris, and even tethered balloon rides, providing panoramic views of the zoo.

This is a branch of the National Maritime Museum of Paris, home to an impressive collection of model replica ships from French fleets and paintings with nautical themes. Free audio guides are available. From the museum, some of the best views over the city unfold.

Nessebar, a city-museum and UNESCO World Heritage Site, is another marvellous day trip from Burgas, located just 35 kilometres away. This ancient town, often called the "Pearl of the Black Sea", sits on a small peninsula connected to the mainland by a narrow causeway, offering stunning sea views on both sides. Its cobblestone streets wind through a historic centre filled with over a millennium of architectural treasures, including the Church of St. Sofia, a 5th-century basilica, and other medieval churches like St. John the Baptist and St. Stephen. The Old Town, a maze of narrow lanes and 18th-century houses, invites leisurely exploration, with artisan shops and street vendors adding to its charm. Nessebar was once a Thracian settlement and later a Greek colony, playing a key role in the development of trade and culture in the Black Sea region. Its unique blend of ancient ruins, Byzantine churches, and a lively atmosphere makes it a captivating destination for history enthusiasts and casual vacationers.