What are other attractions than Spanish Riding School that are worth visiting in Vienna?

The other must-see attractions in Vienna are:<a href='/vienna-state-opera-l3941/'>Vienna State Opera</a><a href='/museum-der-illusionen-vienna-l130878/'>Museum der Illusionen, Vienna</a><a href='/albertina-l3946/'>Albertina</a><a href='/chocolate-museum-vienna-l121520/'>Chocolate Museum Vienna</a><a href='/leopold-museum-l4620/'>Leopold Museum</a>

What are the most popular Spanish Riding School tours and tickets?

The best Spanish Riding School tours and tickets are:<a href='/vienna-l7/performance-of-the-lipizzans-at-spanish-riding-school-t187323/'>Performance Of The Lipizzans At Spanish Riding School</a><a href='/vienna-l7/vienna-spanish-riding-school-guided-tour-t120375/'>Vienna Spanish Riding School Guided Tour</a><a href='/vienna-l7/walking-tour-vienna-at-first-glance-t100854/'>Walking Tour: Vienna at First Glance</a><a href='/spanish-riding-school-l4623/vienna-lipizzaner-special-admission-ticket-t401662/'>Vienna: Lipizzaner Special Admission Ticket</a><a href='/vienna-l7/vienna-electric-bus-tour-t402884/'>Vienna: Electric Bus Tour</a>