Tikal is a popular archeological site that was once a powerful, thriving city-state in the Mayan empire. Learn more about Guatemala's most famous attraction, and some fun facts about the ancient Mayas, in this episode of The Coolest Stuff on the Planet.

The Pantanal is a large wetland area located in Brazil, Bolivia and Paraguay that's teeming with plant and animal life. Explore the wild, watery world of the Pantanal with Matt and Rachel in this episode of The Coolest Stuff on the Planet.

The Brazilian city of Rio de Janeiro is famous for many things -- gorgeous people and places, Carnaval, soccer, poverty and violence. Join Matt and Rachel as they explore the many facets of Rio in this episode of The Coolest Stuff on the Planet.

The small town of Churchill in the Canadian province of Manitoba has a lot of natural attractions -- especially of the large, white variety. Find out why it's a great place to check out bears and whales in this episode of The Coolest Stuff on the Planet.

If you like mud and you like architecture, this episode of The Coolest Stuff on the Planet is a must-see. Join Matt and Rachel on a virtual tour of the world's biggest mud structure -- the Great Mosque of Djenne in Mali, West Africa.

Agra Fort isn't as well-known as its famous neighbor the Taj Mahal, but this huge palace/fortress complex is just as cool. Take a virtual tour of Agra Fort's intricate architecture and colorful history in this episode of The Coolest Stuff on the Planet.