The highest point in Wisconsin is capped by two towers that are not as mythic as Tolkien's but provide much better views.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

An exhibit of items from the mental institution where Mary Todd Lincoln lived after her son conspired to have her committed.

An icon among Florida's pre-Disney tourist attractions, just west of Orlando.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Elvis's own personal tropical hideaway.

This replica of the Greek structure is in the heart of Nashville.

This huge clock made of flowers and simple machinery was once used a political weapon.

Belly up to the bar in Cowtown, don't forget to buy some boots.

This downtown Dallas art installation is always on the lookout.

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

These aggressively sustainable art homes look like something out of 1970's science fiction.

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

The only road through the heart of Glacier National Park.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Famously misunderstood wonder of the ancient world

The walls and streets of the ancient city are peppered with penises.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

A map of Italy made entirely of trees.

Naturally preserved bodies are eerily staged throughout the crypt in varying poses.

This region of the Perugia municipality has an unforgettable name.

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