Salzburg's Old Town with its baroque architecture is one of the best-preserved city centers in the German-speaking world, and was listed as a UNESCO World Heritage Site in 1997.
A view of Prague, that is considered to be one of the most beautiful cities in Europe. The historic centre of Prague has been included in the UNESCO list of World Heritage Sites.
Tortuguero has incredible biological variety, due to the existence within the reserve of different habitats, including rainforest, swamps, beaches, and lagoons.
The Winter Palace in Saint Petersburg, Russia was built as the winter residence of the Russian tsars. The Palace is now part of a complex of buildings known as the Hermitage Museum.