Most visitors to Piazza del Duomo never notice it. The Museo del Novecento occupies the Arengario, the fascist-era palace beside the cathedral, and holds the finest collection of twentieth-century Italian art anywhere – with a top-floor window looking straight onto the Duomo. Guests at Taylor's Love Solferino B&B can walk there.

Museo del Novecento, Milan. Photo: Stefano Stabile, Wikimedia Commons, CC BY-SA 3.0.
On foot: approximately 1.7 km, about 21 minutes from Via Solferino 56, down through Brera past La Scala and the Galleria.
By metro: from Moscova (M2 green line), 300 metres away, to Cadorna, then M1 red line to Duomo. The museum entrance is on the square. Around 16 minutes door to door.
The Arengario was built between 1936 and 1956 as a platform from which the regime addressed crowds in the square. After the war it sat awkwardly, too prominent to demolish and too compromised to celebrate.
The conversion, completed in 2010, kept the building's severity but drove a spiral ramp up through it, so that visitors climb in a slow curve past the windows. It was an elegant answer to an uncomfortable inheritance.
You are on Piazza del Duomo. The cathedral, its rooftop terraces, the Galleria Vittorio Emanuele II and Palazzo Reale are all within a hundred metres. The Museo del Novecento is the best of these to do last, when the square outside is at its most crowded.
Taylor's Love Solferino B&B is at Via Solferino 56 in Zone 1, the historic centre, between Brera, Moscova and Corso Garibaldi. Twenty minutes on foot to the Duomo means you can go twice – once for the museum, once at night when the square is lit and almost empty.
For travellers who prefer a short stay apartment in Milan centre to a hotel, the B&B offers free self check-in with a smart lock. Porta Garibaldi FS, 700 metres away, connects directly to Malpensa Airport with the Malpensa Express.