Today Piraeus is the home base of Greek shipping, the largest commercial fleet in the world, apace bound to the sea like few others. The harbours of Zea and Mikrolimano as well as Phaliro play host to countless yachts and sailing craft throughout the year. Piraeus was known in medieval times as Porto Leone, a name due to the enormous stone lion, which guarded the port's entrance. Today, the life of Piraeus is centred on its three ports: the main, central one and those of Zea and Mikrolimano. You can walk around the central harbour, shared by cargo and passenger ships alike, and watch the constant comings and goings of goods and people from around the world. Having completed your tour of the central harbour of Piraeus you will then head south traversing the peninsula and arrive at Peiraiki, one of the most picturesque neighbour hoods in the city. Here one finds the harbour of Zea, one of the largest marinas in the Mediterranean. If the night finds you in the area, you can try one of the many bars found nearby. You can continue your tour along the waterfront heading towards Kastella but a small deviation toward the city centre will be useful for then you can visit the verdant square of the municipal Theatre with cafeterias and shops of all kinds surrounding it. The magnificent building housing the Municipal Theatre as well as the Town Hall and the Library complete the picture presented by the main square in the city. Piraeus's little natural harbours are among its busiest and most touristy areas: Mikrolimano, Passalimani, Zea, Freatida and Hatzikiriakio. Countless seaside tavernas provide delicious seafood washed down with the uniquely Greek drink, ouzo. The fresh smell of the sea and the sounds made by the assortment of caiques, yachts and sailing ships, which are moored next to the tables, complete the enjoyment of the food Beyond the port, the most impressive spots are the hills of Profitis Ilias and Kastela with their neoclassical mansions and modern buildings which look as they are hanging over the sea.