The white limestone bottom of this freshwater lagoon makes the vibrant aquamarine waters look even brighter. This blissful escape is perfect for kayaking or lounging and has smaller crowds than some of the more well-known tourist towns.

Toledo, seat of Lucas County, northwestern Ohio, a port on the Maumee River, at its mouth on Lake Erie; incorporated 1837. The city's extensive transportation facilities include its fine natural harbor, which is a port on the Great Lakes-Saint Lawrence Seaway and ranks among the world's leading soft-coal-shipping ports; an extensive network of railroads; and an air cargo terminal.

As a UNESCO World Heritage site, Stone Town boasts narrow, winding streets lined with towering stone buildings adorned with beautifully carved wooden doors, reflecting its rich history as a major trading hub.

Istanbul is a city built on layers of empire. Spanning two continents, it was once the capital of three major empires: Roman, Byzantine, and Ottoman. Visitors walking through the Sultanahmet district can witness this timeline firsthand, from the Roman-era Hippodrome to the Byzantine mosaics of Hagia Sophia, and the towering minarets of the Blue Mosque. At nearby Topkapi Palace, rooms still display the jeweled swords, ceremonial robes, and handwritten Qurans once used by Ottoman sultans.

Ontario is a city in Southern California’s Inland Empire, located in San Bernardino County at the foot of the San Gabriel Mountains. The city occupies a landscape that has been shaped by agriculture, residential development, and transportation infrastructure, with the mountains providing a prominent backdrop to the north.