This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Man-made geyser that rises to the exact height of the Gateway Arch.

An abandoned factory along the Mississippi coated by a giant mural.

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

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

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

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