This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

This ancient cave temple complex is the largest and best-preserved temple complex in Sri Lanka.

This elaborate temple was built around one of the Buddha's teeth.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.

An ancient stone fortress considered by many to be the eighth wonder of the world.

This armored vehicle was built in the local shipyard for use by the defenders of Dubrovnik.

A curious cave church carved into the face of a cliff.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

In Houston's airport, a cow is properly equipped to jump over the moon.

A Bohemian "anti-hotel" offers off-kilter stays in Sri Lanka.

Still standing despite its considerable slant, this tilted lighthouse has become a local symbol of resilience.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

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

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

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

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

A lush indoor jungle fills this bustling Madrid transportation hub.

A charming beach town in Turkey captures all the colors of the rainbow.

Roman ruins, natural methane fires and a lovely beach.

Ottoman-era houses lovingly preserved.

1513 Turkish world map, full of European state secrets and snarky commentary.

Flames have been burning within this mountain for more than 2,500 years.

This famous city eluded concrete detection until the early 2000's.