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

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

This beautifully deceptive waterfall is something far different from what it appears to be.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

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

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

Mexico's astounding mummy museum with "the world's smallest mummy."

The winter home of millions of migrating monarch butterflies.

Diego Rivera's massive tiled fountain and failed infrastructure project.

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

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

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.

Extraordinary sculpture garden created by an eccentric English poet.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

A close look reveals that the Scottish monument is just slightly off-kilter.

After the devastating 2011 earthquake, historic Christchurch begins to recover, starting with the pop-up Re:START mall.

A memorial to Wellington's well-loved, well-traveled wharf dog.

High winds can make this one scary landing.