Don't miss the tall, stout Kiek-in-de-Kök in the Toompea neighbourhood. Its name is Low German for 'peep into the kitchen'. From the upper floors medieval voyeurs could see into the houses of the Lower Town. Built in about 1475, Kiek-in-de-Kök now houses a museum with several floors of maps, weapons and models of old Tallinn.
NaissaarNaissaar, at 44 sq km, has a lively history, thick forests (covering 85% of the island), and even a boulder with a circumference of nearly 27m! There's a 19th-century cemetery for English sailors from the Crimean and Russo-Swedish wars, which attests to the island's military history.
Hiiumaa Islets Landscape ReserveSaarnaki, Hanikatsi, Vareslaid and other islets off southeastern Hiiumaa form the Hiiumaa Islets Landscape Reserve. This is a breeding place for some 110 bird species including avocets, eider ducks and goosanders, as well as a migration halt for swans, barnacle geese and other species. Over 600 plant species - more than half of Estonia's total - occur here.