Two stone columns flank the grand Venice square, but there were supposed to be three.

Venice's island of the dead.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

One of the largest underground systems runs under Canada's largest urban center.

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

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

This former stomping grounds of the most eminent astronomers of the early 20th century.

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

This sacred fig tree with a link to the Buddha is one of the oldest human-planted trees in the world.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

The embalmed remains of the communist leader lie within a custom crystal coffin.

Largest Kauri tree in New Zealand.

Handcrafted thermal spa washes away each night with the tide.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

This strange geological landscape erupts with sudden bursts of water.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Pilgrimage site for star-crossed lovers.

This winding road through an Italian canyon may be the most scenic drive in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.