Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Towering basalt columns, a creation of fire and ice.

The ghostly remains of an accidental sea.

The world's oldest known salt mine.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

This seaside production studio was built to film 'Titanic' and has been the wet set of choice for other Hollywood productions since.

Giant nude woman of Tijuana is also the artist's home.

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

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

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.

These azure waters were thought to lead to the Mayan Underworld.

This giant roadside goose has been hailing travelers into a small Ontario town for over 50 years.

Possibly the world's largest coin stands just outside of a Canadian science center.

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

Profile of a sleeping person 4km long in 250m high cliffs.

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

Soaring over the Niagara Whirlpool since 1916.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

Little island known for its massive beachfront "flowerpot" pillars.

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.