Ask a first-time visitor which Tallinn museum they've heard of, and most say Kiek in de Kök. Fair enough — but the city's best collections aren't in the Old Town at all. They're a short tram ride away, and most guests never get there. KUMU and Kadriorg Palace Photo by nicolai-plenk on Unsplash Take Tram 1 towards Kadriorg, about 15 minutes from Viru. KUMU, Estonia's main art museum, spans 18th-century portraits to Soviet-era nonconformist work in 1.5–2 hours. Peter the Great built Kadriorg Palace next door as a summer residence — the Baroque interior is worth the €8–10 ticket. Both close Monda…