This unreal Portuguese palace looks as though it's made from a pile of different castles.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

These ruins are all that remain of what a Spanish barrack that likely housed a quarry overseer, masons, and stone cutters involved in the construction of the Castillo de San Marco.

This abandoned bridge is now a favorite haunt for graffiti artists.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

This beautiful Miami garden was designed as a laboratory for tropical plants.

A temple to modernity, tucked away amid Barcelona's more well known museums.

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

The romantic botanic tunnel feels like a well-kept secret.