Elevate your day with a trip to Altitude Rooftop & Pool at Marriott Marquis Houston located in the heart of downtown Houston. Spend the day floating around the world's only rooftop Texas-shaped lazy river, soak up the sun in comfort on the edge of the infinity pool, and indulge in poolside food and drinks. If it's rest and relaxation you're after, take in a workout and steam in the 7,000 sq ft Pure Spa and fitness center, or book a Cabana for an enviable lounge experience. Escape the city and come experience "Weekdays Elevated".