The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

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

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

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

The biggest museum dedicated to insects in North America, one of the largest in the world.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.