
Pula Arena
One of the world's best-preserved Roman amphitheatres.
Photo: Olgierd Rudak / CC BY-SA 4.0

A 5th-century basilica rebuilt over fifteen centuries.
Photo: Berthold Werner / CC BY-SA 3.0
Behind a Renaissance facade stands one of Croatia's oldest churches: a basilica begun in the 5th century on the foundations of a Roman temple. Floor mosaics from the 5th and 6th centuries survive inside, and its free-standing bell tower was raised in the 1600s from stone quarried out of the Arena. Fire, earthquake and plunder all failed to erase it.
Look down: fragments of early-Christian floor mosaic peek through glass panels near the altar.
A small next-step selection from the same city.

One of the world's best-preserved Roman amphitheatres.
Photo: Olgierd Rudak / CC BY-SA 4.0

Tito's island paradise of dinosaurs and safari.
Photo: Wikimedia Commons / CC BY-SA 4.0

A cool maze of WWI tunnels beneath the city hill.
Photo: Psittacuso / CC BY-SA 4.0
Use the free map from home, then verify the discovery when you reach the place.