An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

The only museum with its curator—and her pets—buried inside.

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

An exquisite Baroque church in Vienna's old town.

The solemn exterior conceals an opulent interior of this 17th century church.

Op-art architecture designed for happiness.

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

The topiary maze at the Habsburg hunting lodge.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Montreal's colorful subway station shows its support of the local LGBT+ community.

A historic Montreal market that was the city's agricultural hub for over century.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

This hidden art nouveau gem was designed by an architect in search of a national style.

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

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A prime example of New Orleans' unique architecture these early 20th century homes were built to look like steamboats.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The second oldest continuously operating bar in Louisiana.

Home to a protest movement, a bombing, and a dramatic change in labor history.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A gothic church spire sits atop this skyscraper, the tallest church in the world.