Hidden in the northern region of Costa Rica, the Celeste River (Río Celeste) winds through Tenorio Volcano National Park with a color so vivid it seems unreal. The river’s striking turquoise hue is caused by a natural chemical reaction between two mineral-rich streams, Quebrada Agria and Río Buena Vista, which merge at a point known as "El Teñidero." This one-of-a-kind phenomenon creates the illusion that the water has been dyed blue, even though no pigments are present.

A booming city of over 3 million, Surabaya offers many good hotels, shopping centers and entertainment. Its well stocked zoological garden include several species of Indonesian fauna like "orang utan", komodo dragon and a collection of nocturnal animals.

Nazaré, set along Portugal’s wild Atlantic coast, is a fishing town transformed into one of the world’s most dramatic surf destinations. Its identity is deeply tied to the sea, both in its centuries-old maritime traditions and in the awe-inspiring waves that now draw visitors from around the globe.

Set at the meeting point of Brazil and Argentina, Foz do Iguaçu is defined by the sheer scale of the Iguaçu Falls. Nearly 275 individual waterfalls stretch across close to three kilometers, sending mist into the air and sound echoing through the surrounding forest. Visitors follow raised walkways that bring them face to face with this moving wall of water, culminating at the dramatic Devil’s Throat, a deep, curved drop where the river seems to vanish into the earth.

Polonnaruwa, located in Sri Lanka’s North Central Province, served as the island’s capital nearly a thousand years ago. Today, it offers one of the most extensive and well-preserved archaeological sites in South Asia. Visitors can walk among the ruins of royal palaces, Buddhist monasteries, and intricately carved stone temples. One of the highlights of Polonnaruwa is the Gal Vihara, a group of colossal Buddha statues carved directly into granite.