![A visitor is seen at Aquarium Pula, Croatia, July 26, 2018. Housed in a more than 130-year-old fort in Croatia, Aquarium Pula boasts species from the Adriatic as well as tropical marine A visitor is seen at Aquarium Pula, Croatia, July 26, 2018. Housed in a more than 130-year-old fort in Croatia, Aquarium Pula boasts species from the Adriatic as well as tropical marine](https://c8.alamy.com/comp/2CT0PM6/a-visitor-is-seen-at-aquarium-pula-croatia-july-26-2018-housed-in-a-more-than-130-year-old-fort-in-croatia-aquarium-pula-boasts-species-from-the-adriatic-as-well-as-tropical-marine-zones-and-freshwater-habitats-from-seahorses-delicately-entwining-themselves-in-the-seagrass-to-the-other-worldly-jelly-fish-drifting-in-the-deep-blue-water-the-aquarium-is-home-to-around-250-species-in-100-pools-and-tanks-and-attracts-some-125000-visitors-a-year-picture-taken-july-26-2018-reutersantonio-bronic-2CT0PM6.jpg)
A visitor is seen at Aquarium Pula, Croatia, July 26, 2018. Housed in a more than 130-year-old fort in Croatia, Aquarium Pula boasts species from the Adriatic as well as tropical marine
![Verudela, Pula, Istria, Croatia. The Pula Aquarium, it is located inside the Austro-Hungarian Verudela military fortress, built in 1886 on the peninsula Verudela, 3 km from the center of Pula. The conversion Verudela, Pula, Istria, Croatia. The Pula Aquarium, it is located inside the Austro-Hungarian Verudela military fortress, built in 1886 on the peninsula Verudela, 3 km from the center of Pula. The conversion](https://c8.alamy.com/comp/FYAY36/verudela-pula-istria-croatia-the-pula-aquarium-it-is-located-inside-FYAY36.jpg)
Verudela, Pula, Istria, Croatia. The Pula Aquarium, it is located inside the Austro-Hungarian Verudela military fortress, built in 1886 on the peninsula Verudela, 3 km from the center of Pula. The conversion
![Visitors look at an exhibit at the Aquarium Pula, Croatia, July 26, 2018. Housed in a more than 130-year-old fort in Croatia, Aquarium Pula boasts species from the Adriatic as well as Visitors look at an exhibit at the Aquarium Pula, Croatia, July 26, 2018. Housed in a more than 130-year-old fort in Croatia, Aquarium Pula boasts species from the Adriatic as well as](https://c8.alamy.com/comp/2CNFGMD/visitors-look-at-an-exhibit-at-the-aquarium-pula-croatia-july-26-2018-housed-in-a-more-than-130-year-old-fort-in-croatia-aquarium-pula-boasts-species-from-the-adriatic-as-well-as-tropical-marine-zones-and-freshwater-habitats-picture-taken-july-26-2018-reutersantonio-bronic-2CNFGMD.jpg)