This museum offers an actual time machine back through Colorado's past.

A clone of a cloned tree that was so important it allegedly had its own guards.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

The world's largest dead polar bear, immortalized by taxidermy and Hunter S. Thompson.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

The span is crooked and made from two older recycled bridges.

An oil baron's wild paradise and the winner of an ill-fated air race.

This historic Idaho island is home to a strange timeshare museum, a homemade mini-golf course, and an outhouse named Aunt Fanny.

Behind legendary Meltdown Comics is a marker for an engineered musical roadway of the Tehachapi, the great road builders of Kcymaerxthaere.

Tirelessly maintained by a Wisconsin man named JFK.

An 1870s ranch for pioneers, rodeo stars, and divorcees was abandoned and left for dead, until the city reopened it for exploration.

Under a playground is a little-known sealed train tunnel that likely contains the bodies of workers trapped by cave-ins.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

Political debates in a fabulous Pasadena castle.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

A New Hampshire grave with a grudge.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

The first hand-illuminated, hand-written bible since the invention of the printing press.

A gift from Abbot Kinney and a little bit of piece of Black history in Venice Beach.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

This simple home was the beginning of a long journey for the iconic Western film star.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.