Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The only castle in North America to ever house European sovereigns.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The granite head appears to be deep in thought and half buried in the ground.

The New Central Library is a masterpiece of contemporary architecture in the midst of downtown Calgary.

A herd of colorfully painted bovine statues can be found in the middle of "cowtown."

One of the last remaining buildings from one of Calgary's earliest businesses.

A controversial blue hoop has been puzzling freeway drivers since 2013.

With its webbed walls and bright red coloring, Calgary's iconic bridge looks like a finger trap puzzle stretched across the river.

Decorated by local artists, the city's utility boxes have become three-dimensional canvases.