
Sea Organ
Marble steps where the sea itself plays music.
Photo: Andrej Šalov / CC BY-SA 3.0
Tilt rooms, infinity mirrors, a vortex tunnel and holograms make this small museum a favourite refuge when the sun gets fierce or the kids get restless. Every exhibit begs for a photo that breaks your brain: heads on plates, giants and dwarfs, a floor that drops away beneath you.
Bring someone to photograph you: half the exhibits only work as a picture.
A small next-step selection from the same city.

Marble steps where the sea itself plays music.
Photo: Andrej Šalov / CC BY-SA 3.0

The Velebit hiking gateway above Starigrad, with canyons, peaks and marked mountain trails.
Photo: Andro Galinovic / CC BY-SA 4.0

A high Velebit summit with huge views and a demanding approach.
Photo: Martin Vavrik / Public domain
Use the free map from home, then verify the discovery when you reach the place.