However despite of all the wars Pskov had to withstand, it still preserves
much of its medieval walls, built from the 13th century on. The Krom, or
medieval citadel, looks as impressive as ever. Within its walls rises the
256-foot-tall Trinity Cathedral, founded in 1138 .
Pskov is exceedingly rich in tiny, squat, picturesque churches, dating mainly
from the 15th and the 16th centuries. There are many dozens of them, the most
notable being St. Basil's on the Hill (1413), St. Kozma and Demian's near the
Bridge (1463), St. George's from the Downhill (1494), Assumption from the
Ferryside (1444, 1521), and St. Nicholas' from Usokha (1536).