A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The plague quarantine island home to the alleged "Vampire of Venice."

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Go inside to really appreciate this 500-year-old technological masterpiece.

Venice's "Island of the Mad."

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

See the computer’s history revealed over the course of 20,000 years.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

Mining town from the late 1890s, once home to Calamity Jane.

The formidable fowl can be found standing near an isolated hiking path.

One man's ambition created this psychedelic log home.

At the time of its completion, it was the tallest dam in the world.

A scenic ravine with an astounding collection of rock art created by the Indigenous people of the Great Plains.

An unusual geological feature towers over the remains of a dark episode in United States history.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

Native Americans built this circle of stones, which was used to predict astronomical events.

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

A working ranch doubles as a sustainable hub for world-renowned classical music and large-scale sculptures.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.