A wunderkammer of gold and silver reliquaries and ancient saintly bones.

One of Europe's oldest libraries.

The site of Paul Revere's historic two lantern warning.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

Highly spherical boulders on the shores of New Zealand.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

Rebuilt remains of a temple to Roman god Mithras.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Steadily reminding Czechia of its past.

At 207 feet, one of the world's longest continuous escalators.

Tubing through a cave lit with glowworms is a magical underground experience.

A monument celebrating the idea of reaching inaccessible places.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This landmark cemetery in Boston was created more than 300 years ago.

A centuries-old church stands as a testament to Boston's "father of architecture."

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

A perfect turquoise lake colored with glacier dust.

The world's most remote airport.