Marathon, located near the center of the Florida Keys, is a vibrant island city known for its fishing, boating, and tropical charm. Nestled between Key Largo and Big Pine Key, Marathon is surrounded by clear waters, coral reefs, and sandy beaches, making it a prime destination for water-based recreation.

Danco Island also offers a close look at how Antarctic wildlife uses a small ice-covered island. Gentoo penguins establish colonies on rocky and snow-free areas, while the surrounding channel provides access to feeding grounds. The island’s exposed slopes and summit can be windy, and snow conditions may vary considerably between visits. Its compact landscape means that even a short excursion can reveal glaciers, mountains, sea ice, seabirds, and penguin colonies within a relatively small area.

Mestia is the main town of Upper Svaneti, a high mountain region in northwestern Georgia surrounded by the peaks of the Greater Caucasus. The town sits in a broad valley at about 1,500 meters above sea level, with snow-covered mountains, forested slopes, and alpine terrain extending in every direction.

The Aran Islands lie at the mouth of Galway Bay on Ireland’s west coast and comprise three inhabited islands: Inis Mór, Inis Meáin, and Inis Oírr. Their landscapes are defined by limestone terraces, stone walls, small fields, sea cliffs, and exposed coastal ground shaped by Atlantic weather. The islands are known for their distinctive dry-stone walls, which divide much of the farmland into small plots.

Central African Republic, republic in central Africa, bordered on the north by Chad, on the east by Sudan, on the south by Zaire and the Republic of the Congo, and on the west by Cameroon. The landlocked nation has an area of 622,436 sq. km (about 240,323 sq. mi). Bangui is the capital and largest city.