A multi-storied adobe complex has been inhabited for more than a thousand years.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Granting the right of way to ships over surface traffic since 1917.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

The site of the climactic scene from the classic horror film is now a historic landmark.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A giant Troll lurks under one of Seattle's oldest bridges.

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

This stunning concert hall has become a symbol of Iceland's national recovery.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

Sniff the Titan Arum's rotting flesh.

Electrical pylon in the shape of Disney's beloved mouse.

Penn State's giant bug collection.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

This beautiful, historic church looks like something out of a simpler past.

This elegant arc of a waterfall marks a religious turning point.