The Four Bridges of Florence. Ponte Vecchio, Ponte Santa Trinita and Ponte alle Grazie are the best of 4 bridges in Florence. The most popular of these are Ponte Vecchio in Siena and Ponte alla Carraia in Lucca.
Lenticular Cloud over Klyuchevskaya Sopka Mountain, Russia by Denis Budkov: Klyuchevskaya Sopka is a stratovolcano, the highest active volcano of Eurasia. Its steep, symmetrical cone towers about 100 kilometres from the Bering Sea.