The world's brightest bioluminescent bay.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

One of the largest underground systems runs under Canada's largest urban center.

The New Central Library is a masterpiece of contemporary architecture in the midst of downtown Calgary.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

The burial ground of four Buganda monarchs was nearly destroyed by a devastating fire.

Inside this Krakow church, an explosion of psychedelic color.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

The metal leaves on this tree are engraved with the names of Holocaust victims.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

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

A surreal statue honoring Prague's favorite literary son.

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

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.