A pocket of jungle amidst urban expansion in Panama.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

This Swiss cemetery is reserved for people who died in climbing accidents.

A historic observatory precariously perched at the "Top of Europe."

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The bears of Bern have been a city highlight for over 500 years.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A pillar is all that remains of a church built to honor a peculiar miracle.

Where royalty waits in the height of luxury.

The only quarter of the Old City not dedicated to a major world religion.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

The home of the Dead Sea Scrolls is an abstract modernist dream.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Named for the biblical warrior, the largest castle in Israel actually dates to the Middle Ages.

An iconic view point of the Sea of Galilee offers a look into Israel's past.

This synagogue is covered in beautiful mosaics that explore the history of the Jewish people.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

Tel Aviv's popular neighborhood went though endless waves of transformation.

This full-sized orange tree lives suspended in mid-air above the streets of Jaffa.