The National Aquarium, located in Baltimore’s Inner Harbor, is home to more than 11,000 aquatic animals representing 660 species of fish, birds, amphibians, reptiles, and marine mammals. Popular features include a tropical rainforest habitat with sloths and piranhas, the immersive 4-D theater, and the thrilling shark walk, where you can peer into a tank full of these apex predators.

This huge wine cellar spreads 15,000m² and is one of the oldest in Europe. Many of Maribor’s finest wines are produced here. Visitors can book wine tasting and a tour of the cellars.

The Basilica of St Felix is one of Girona’s oldest churches, a site of continuous worship since the early Christian period. Its architecture is a palimpsest of styles: a Romanesque core, a majestic Gothic nave, and a Baroque façade topped by a distinctive truncated bell tower. The interior safeguards priceless treasures, including eight rare Roman and early Christian sarcophagi and the ornate 14th-century Gothic tomb of Sant Narcís, the city's patron saint. Though never the cathedral, its historical and artistic importance is profound. It remains an active parish church, offering a quieter but deeply atmospheric counterpoint to the larger cathedral nearby.