One of the most controversial statues in Romania is an emperor with no clothes.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Romania's triumphal arch looks out over Bucharest.

The kitsch mansion of the former Romanian president Nicolae Ceaușescu features a golden bathroom.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

A lush indoor jungle fills this bustling Madrid transportation hub.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

An ancient Egyptian temple in the middle of Madrid, Spain.

An ancient capital city that dates back 3,000 years and harbors many surprises.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.

Breathtaking and huge 430 year old maps of Italy.

The Pope’s secret escape route.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

This ancient market is often referred to as the oldest shopping mall in the world.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.