The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This quirky hot springs town known to locals as "T or C" was named after a radio show.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

An ancient Egyptian temple in the middle of Madrid, Spain.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This strangely amalgamated museum explores the history of the Timex clock company as well as archaeology.

This factory made "health corsets" that were a step towards liberating women's bodies.

The highest point in Connecticut was incorrectly memorialized before surveyors discovered the actual spot.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

The center of the only hemisphere that awards visitors with a commemorative coin.

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

A town filled with hot chocolate, dazzling lights, and lots of Christmas cheer.

The titular fictional logger only inhabits this otherwise historically focussed museum via a piece of fiberglass kitsch.