Giardino di Boboli, Florence
Concierge.com's insider take:
The only park in the center of Florence, the Boboli Gardens (behind Palazzo Pitti) provides a green oasis in the midst of the city's dense Renaissance architecture. Laid out by Buontalenti in the 16th century, it is a wonderful space where you'll come across fountains, statues, secret pathways, lawns, formal gardens, and a thriving population of stray cats. Look for the Neptune Fountain, the beautiful Giardino del Cavaliere at the top of the gardens, Buontalenti's fantastical, newly restored grotto, and the statue of Cosimo I's chubby dwarf astride a turtle, just before the main exit.
Open daily 8:15 a.m. till one hour before sunset. Closed the first and last Monday of each month.