Arch of Gallienus (Arco di Gallieno), Rome, Lazio, Italy, Europe

rome lazio italy ancient architecture historical landmark visitors city life greenery vibrant atmosphere clear sky sunny day tourism sightseeing cultural heritage roman history outdoor exploration iconic structure public space relaxation history enthusiasts travel wanderlust adventure urban landscape landmarks ancient civilization archaeological site appreciation leisure day out natural beauty picturesque view travel destination heritage site visitors enjoying sightseeing tours exploration outdoor activity architectural beauty iconic monument famous arch historic rome italian history cultural experience europe travel guide ancient ruins urban greenery local culture roman architecture