This letter written by Queen Elizabeth II in 1986 won't be opened until 2085.

Though dynamited and defaced, the statue still stands outside the law courts in Georgetown, Guyana.

A giant gun barrel in Barbados that once hoped to shoot outer space with science.

This reconstructed ancient fort was home to one of the few horse training rings in the Roman Empire.

This beautifully situated lakeside Roman settlement was likely built during the reign of the Emperor Hadrian.

This massive Maya archaeological site is home to the tallest man-made structure in Belize.

A massive underwater sinkhole made famous by Jacques Cousteau.

Legend says train robbers stashed their gold within the depths of this unusual cave.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

The cursed island of black pebbles.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

This wooden chair dates possibly back to the 15th century, and commemorates a local legend.

After a night ravaged by bedbugs, it's said King John ordered the creation of this weathervane.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

The most biologically diverse protected area in Africa is also the most dangerous.

The world's only pure blue lizard lives exclusively on this secluded tropical island.

A plaque outside the San Jose airport commemorates the insect's arrival to the West Coast.

In this breathtaking canyon, crocodiles bask on boulders and glide through the murky waters.

After becoming locally extinct, this esteemed avian now flies free in the forests around the ancient ruins.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

London's marvelous wildfowl reserve along the Thames.

View rare birds and interact with lemurs at this nonprofit run entirely by volunteers.

Wood carving meets bird conservation at this museum showcasing the life's work of one man.

One man's goal to be surrounded by color resulted in this enchanting assortment of avian abodes.