Handling something as unusual and amusing as toilets, Sulabh International Museum integrates some bizarre exhibits with a matter of fundamental importance in India such as sanitation. Founded by Dr. Bindeshwar, an inspiring personality who strongly contributed to integrate untouchables, it aims to educate about sanitation and its development throughout the years.

The amazing Teatro Regio (Royal Theatre) was commissioned by Vittorio Amedeo II and inaugurated in 1740. It immediately became a reference in the world of opera and ballet, not least for its sophisticated design. Today, the theatre remains a touchstone for the art of opera, but you can also visit the stunning building for its architecture alone. Be sure to check out the intricate bronze Cancellata Odissea Musicale art piece at the entrance.

This magical attraction features over 2,000 colourful tropical butterflies floating freely among lush, exotic blossoms and greenery. Paths wind through the rain forest setting, past a pond and waterfall and the Emergence window, where butterflies leave their pupae and prepare to take their first flight. The self-guided walking tour of the Butterfly Conservatory begins with a short, informative video presentation that is closed captioned for the hearing impaired.

Pinacoteca Agnelli is an art gallery that displays art from a vast private collection. You'll find Renoir's Blonde Bather and Manet's La Négresse, as well as works by Matisse, Canaletto, Tiepolo, Canova, Picasso and Modigliani. The futuristic "crystal spaceship" pavilion is an attraction in itself. The Pinacoteca is perched on top of the Lingotto complex — the headquarters of the Italian auto giant Fiat, founded by Giovanni Agnelli. It was built as a car factory in the 1920s, and was the largest and most modern plant of its kind in Europe. A winding brutalist ramp took cars to the top of the building, where they could drive the 500 m long test track. The ramp and the test track are still in top-notch condition, but the building itself now serves a different function. While its exterior remained largely unaltered, the interior was revived to house an exhibition centre, a conference centre and auditorium, two hotels, offices and shops. The iconic ‘Bubble’ — a transparent meeting room on the roof — was also added.