Diamond Hill at only 442 metres, does not rank as an Arderin, or a Vandeleur-Lynam; however, it has the prominence to rank as a Marilyn. Diamond Hill is an isolated peak, situated beside the village of Letterfrack.

Diani Beach is a major beach on the Indian Ocean coast of Kenya. It is located 30 kilometers south of Mombasa, in the nearby Kwale County.

Dingle is a small port town on southwest Ireland’s Dingle Peninsula, known for its rugged scenery, trails and sandy beaches. A statue of long-time harbour resident Fungie the dolphin is by the waterfront.

The Dingle Way is a long-distance trail around the Dingle Peninsula in County Kerry, Ireland. It is a 162-kilometre long circular route that begins and ends in Tralee and is typically completed in eight days.

The Dodecanese, in the southeastern Aegean Sea, is a group of Greek islands known for their medieval castles, Byzantine churches, beaches and ancient archaeological sites.

The Dolomites are a mountain range located in northeastern Italy. They form part of the Southern Limestone Alps and extend from the River Adige in the west to the Piave Valley in the east. The northern and southern borders are defined by the Puster.

Dominica is a mountainous Caribbean island nation with natural hot springs and tropical rainforests. Morne Trois Pitons National Park is home to the volcanically heated, steam-covered Boiling Lake.

Dominical is a beach-front town in Bahía Ballena de Osa District in the province of Puntarenas in Costa Rica, approximately 45 km south of Quepos. It is well known for large, year-round waves and is popular among surfers in Costa Rica.

The Dominican Republic is a Caribbean nation that shares the island of Hispaniola with Haiti to the west. It's known for its beaches, resorts and golfing. Its terrain comprises rainforest, savannah, and highlands, including Pico Duarte.

Donegal is a town at the mouth of the River Eske, in northwest Ireland. Originally built in the 15th century, Donegal Castle has later additions from the Jacobean period.