The Roman Baths in Varna are the third-largest Roman ruins in Europe and the largest in Bulgaria. Built in the II century AD, these impressive thermal baths were once a central part of Roman social life, where people gathered to bathe in both hot and freezing cold water. The site is well-preserved, easy to access, and offers an affordable entrance fee.

This national historical monument has a strategic location which was settled in the Celtic and Great Moravian periods. The architecture of the massive rectangular castle with four corner towers was mostly influenced by reconstruction works during the Gothic and Renaissance periods and during the reign of Maria Theresa. In 1811, it burned down and was then reconstructed in the 1960s.

The Port of Spain is the largest cruise port in the twin-island republic of Trinidad and Tobago. The Port has two piers and it can accommodate two cruise ships at the same time. The terminal offers many services and facilities for passengers and crew. It has a tourist information office, souvenir and duty-free shops, cafes and restaurants. Upon docking at Port of Spain, visitors are greeted by a festive atmosphere with calypso singers, steelpan players, and Carnival dancers. Also, there are taxis available outside the terminal offering tours on the island. If you do not want to take a taxi, exploring the city on foot is definitely an option, as the shopping and financial district is only 15 minutes away. As for safety, local authorities strongly recommend walking in groups, especially at night. Other recommendations are not carrying large sums of money and avoiding dark streets or parks at midnight.