The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

A winding, cliffside stretch of road overlooking the Delaware River.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

The largest known medieval map of the world.

An enormous, inside-out glass globe built in 1935.

Breathtaking and huge 430 year old maps of Italy.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

A giant Troll lurks under one of Seattle's oldest bridges.

A remote forest of stone pillars along the Lena river.

Enormous statue of the Emperor of the Mongols.

Machismo turned on its head: the lady's hand goes to the dude with the bigger brain.

Nestled near the mountains of western Canada resides this behemoth earth mover.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Dozens of padlock-trees along the Moscow River.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

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