One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

On the Oregon coast is a natural hole that seems to be draining the sea.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

A historic and oft-filmed prison stands in a Chicago suburb.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

A source of civic pride, though the reason for its construction is unknown.

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

World's largest collection of serial killer artwork and other macabre exhibits.

A huge musical instrument played by the ocean.

The palatial McDonald's that inspired Wesley Willis.

Illegal drag racing two stories beneath Chicago’s streets.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

The 606 is a decade in the making.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

This historic hotel invented the chocolate brownie.

An enormous park-like oasis, full of famous Chicagoans’ graves.

A speakeasy takes on Chicago's drinking culture.