The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

These prehistoric replicas were based on actual skeletal remains.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

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

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

A fragment of one of history’s most famous walls stands as a reminder of unity in a culturally divided city.

A 20-foot statue reminds viewers of an extinct species.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

This massive circular sculpture may not be a portal to other worlds, but it does inspire the mind to imagine them.

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

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

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

A striking steel sculpture that was moved to an out-of-the-way location.

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

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

This mesmerizing kinetic sculpture blossoms endlessly in the breeze.

Located in the historic home of a newspaper publisher, this museum is dedicated to the Freedom of Speech.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Dedicated to one of the darkest moments in Irish history.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.