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

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

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

Twelve natural mummies are displayed in the crypt of this former monastery school.

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

Frida Kahlo's childhood home, now a museum of her life and works.

Little remains of the once flourishing Asbestos' asbestos mine.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

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

The largest canoe collection in the world—and the most Canadian museum ever.

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

The entire length of the border is marked by a 20-foot-wide slash through the trees.

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

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

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

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.