This impressive working clock made of 16,000 plants changes its flowers twice a year.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Canada's oldest sugar maple has been growing since around 1500.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

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

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

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

Soaring over the Niagara Whirlpool since 1916.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

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

You can take the metro between these two stations, or you can walk the underground bookstore-lined passageway that connects them

An island filled with hundreds of hanging, decomposing, decapitated dolls.

After several moves across Mexico City, these two statues found a home in Mestizaje Park.

A small building that loosely resembles a tooth is appropriately used as a dentist office.

The F1 Mexican Grand Prix circuit goes right through the middle of this old baseball stadium.

At this bright and vibrant museum in Mexico City, you can make your own custom scent.

An inland seafood emporium makes more sense than you'd think.

These floating gardens show what Mexico City used to look during the Aztec Empire.

This giant expressionist head crowns a museum devoted to a beloved Mexican leader.

These subterranean models show Mexico City's central square during three different eras.

This architectural wonder of Mexico City houses several art schools and national research centers.

The museum houses "the most studied meteorite in history," among other geological oddities.

Its incredible collections are dedicated to preserving Mexico's film history.