A historic building houses one of the most important archaeological institutes in Europe.

The Greek War of Independence was declared at this medieval Byzantine sanctuary.

These abandoned salt flats are now a haven for wildlife.

One of the best-preserved medieval streets in Europe.

Poseidon? No one seems to know.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One man's remarkable private collection of art from around the world.

One of the smallest bookstores on the planet.

Haunting graffiti left by prisoners of the Spanish Inquisition.