Museum dedicated to the terror regimes of Hungary.

An eerie collection of the surviving structures from a past celebration of the future.

Spain's largest bullring offers a unique glimpse at architecture and history.

A 16th-century Andalusian palace.

The world's largest wooden structure.

The current seat of the Parliament of Andalusia was once the epicenter of the Great Plague of Seville.

A monument to one of the greatest matadors of all time.

These megalithic tombs contain some of the largest stones ever moved in prehistory.

Holding the current title of "biggest chair in the world," it stands with little fanfare in Lucena, Spain.