Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

An exquisite Baroque church in Vienna's old town.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Baroque celebration of the end of the Great Plague of Vienna.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

A Baroque mansion with ties to legendary magicians and alchemists.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

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

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

This artificial cave looks like something out of a fairytale.

Macabre astrological automaton clock dating to the late 1400s.

Countless grotesque faces stare out from this eerie Prague art wall.

A stunning mosque owes its design to an Ottoman ruler nicknamed "the Butcher."

Dozens of elegant ceramic tiles decorate these ancient walls, each displaying the Lord's Prayer in a different language.

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

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

This "Jewish Sistine Chapel" was designed to reinvigorate Judaism's artistic legacy but was almost lost to misguided restoration.

This subterranean funicular is one of the world's smallest subways.