One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Pilgrimage site for star-crossed lovers.

This medieval castle was reconstructed by Carlo Scarpa.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

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

This ancient market is often referred to as the oldest shopping mall in the world.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A massive Montreal stadium that has seen nothing but trouble since its inception.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

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

Its columns were all carved from the same white oak tree.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

One of the world’s longest pedestrian suspension bridges.

This historic streetcar system has been running since the 19th-century.

Elaborate tile work in this railway station tells the story of Portugal.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The stunning interior of this Gothic church is covered in ornate gold details.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.