Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

A lush indoor jungle fills this bustling Madrid transportation hub.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

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

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

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

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

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.

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

A quintet of history museums make this Virginia graveyard as much a resting place for funereal history as it is for people.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

This historic mansion was built as a symbol of love between a husband and wife.

This campus chapel is Robert E. Lee's final resting place and a topic of debate about the legacy of the Civil War.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.