Moravian Karst

This geologic feature may be found just north of Brno, in a naturally sheltered area of the Czech Republic. Moravian Karst is a massive network of limestone caves and gorges that stretches for hundreds of square kilometers underground. You can see how Jedovnick potok, an underground river, sinks into the caverns.

The Macocha Abyss, a chasm 138 meters (453 feet) deep that created when one of the underground cavern ceilings collapsed, is one of the region's attractions. Moravian Karst also has well-marked cycling lanes and trekking pathways to explore in addition to caves.

• Location: Moravian Karst, Czech Republic
• Timing: Open all day
• Famous for: The Moravian Karst resembles something out of a fairy tale, especially in the autumn when the woodlands are "dressed" in autumn hues. If you're in the vicinity, the Moravian caverns are well worth a visit
• Entry Fee: 60 CZK
• Best Time To Visit: Because certain caverns are closed throughout the winter, it's better to visit between March and November.