Dakar, the lively capital of Senegal, stands at the edge of the Atlantic Ocean on the Cape Verde Peninsula. As the westernmost city on the African mainland, it has long been a crossroads of cultures, trade, and ideas.

Fernando de Noronha is a volcanic archipelago in the Atlantic Ocean, belonging to the Brazilian state of Pernambuco. The archipelago consists of 21 islands and islets, with only the main island permanently inhabited. Much of the land and surrounding sea is protected through the Fernando de Noronha Marine National Park and the Fernando de Noronha Environmental Protection Area.

Gamboa, Panama, was originally built to house employees of the Panama canal. The small town's main attractions are its proximity to significant tracts of relatively undisturbed rainforest, and Pipeline Road, considered one of the best bird watching sites in Central America.

Bartolomé Island, one of the most iconic destinations in the Galápagos archipelago, is known for its dramatic volcanic landscape and the postcard-perfect view from its summit. Just off the east coast of Santiago Island, this uninhabited islet draws visitors for its unique terrain with lava flows, spatter cones, and a rust-colored cinder cone that rises sharply above the sea.

Maui, both second youngest and second largest of the Hawaiian Islands, is home to the world's largest dormant volcano, Haleakala, meaning "House of the Sun." Last erupting about 200 years ago, it makes up the eastern end of the island. Maui was formed by volcanic activity from Haleakala on the east and the West Maui Mountains to the west. The connecting isthmus between the two spots was formed from joining lava from both and gives Maui its nickname, the Valley Isle.