Lausanne Center is known for its fantastic lake views, and you can make a stop by Lausanne Cathedral and Hôtel de Ville while in the area.
If you're spending time in Ouchy, you might enjoy attractions like Ouchy Port and Alpine Panorama Path. You might also enjoy the neighbourhood's fantastic lake views before hopping on the metro at Ouchy-Olympique Station to see more of the city.
If you're spending some time in Montriond-Cour, Jardin Botanique Lausanne and Theatre de Vidy are top sights worth seeing.
Sébeillon-Malley might not have many top sights, but Place de la Palud and Palais de Beaulieu are two attractions nearby that you can check out.
Montoie-Bourdonnette is noteworthy for its lake views, and you can make a stop at top attractions like International Olympic Committee and Bois de Vaux Cemetery.