The Pula Arena is one of the world’s six largest surviving Roman arenas. It is the only remaining Roman amphitheatre to have four side towers and with all three Roman architectural orders completely preserved.

Warsaw is considered as the most essential witness of Polish history.

Many will regard the Moscow Kremlin, along with Red Square and Saint Basil's Cathedral next to it, as an iconic representation of Russia.

Do you love reading fairy tales? Have you ever imagined yourself as a royal member living in a castle? The meandering Vltava flows gently around Český Krumlov, the Czech Republic.

In Slovenia, there is a vast “subterranean paradise” - Postojna Cave. It is where you can admire the breathtaking stalagmite formations and take a ride on the world’s only double-track cave railway.

Pastel de nata is one of the pastry desserts Hong Kongers are familiar with. Since you are in Portugal, the origin of pastel de nata, there is no way you will miss trying the most authentic taste of it.