Places kerryymm Wants to Go

The closest thing to Mars on Earth.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

This bizarrely tree-like red skyscraper is one of the newer additions to Barcelona’s skyline.

Experience the wonders of a pristine night sky in this landscape free from light pollution.

A curious urban windmill once owned by a renowned British mathematical physicist.

A remote and picturesque volcano nestled inside another volcano.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A volcanic crater that visitors can look inside.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

A geological bull's-eye visible from outer space.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

The world's second largest single-dish radio telescope, once used to contact E.T.

A Neolithic celestial calendar standing in a nondescript wheat field.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

A stairway to heaven, or to nowhere at all.

Built in 1904 as a lavish gift for a daughter, it is one of Croatia's youngest and most architecturally unique castles, blending Art Nouveau with neo-Gothic elements.

An unusual cave filled with rare alien-looking aragonite formations.

This giant sculpture recalls a famous passage from “Alice in Wonderland.”

This alluring underground library, hidden in a suburban Metro station, features a Space Age aesthetic and its own hydroponic garden.

The first green space constructed on an elevated viaduct.