Lisbon is the westernmost capital of continental Europe, located between the Atlantic Ocean and the Straw Sea, into which the Tagus River flows. Unlike most large cities, the city limits correspond to the perimeter of the old city. This historic centre, sprawling on seven hills, offers a real challenge to runners, as it includes streets that are too steep for car traffic. It is even possible to take a lift to reach the top of one of them!Despite its southern location, the city has no shortage of green spaces, such as the Ajuda Botanical Garden or the Vasco de Gama Garden. From an architectural point of view, despite the conquest of Lisbon by the Moors in the 8th century, the mosques were transformed into churches after the Reconquista, and few of the buildings from that period have survived intact to the present day. However, the abundance of wealth following the opening of new sea routes in the 16th century allowed the king of the time to build magnificent monuments, that are still in a perfect state of preservation.