The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This museum explores the grim reality of life in the earliest British colonies in America.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The highway's southernmost spot is a beloved local attraction.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

Stockholm's narrowest alley is barely over two feet wide.

A large collection of ancient runestones decorates this university courtyard.

The world-record holder for the longest bridge stretching continuously over water.

The official meeting point for the oddly named governing assembly of ancient Sweden.

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.

In the mid-20th century, a tamale-slinging juke joint attracted a diverse clientele in the Mississippi Delta.

This striking royal residence is the largest Renaissance-style castle in Scandinavia.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Elvis's own personal tropical hideaway.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

This kitschy tavern is also home to rare early editions of "Treasure Island."

An eerie smiling woman looms above the granite tombstones.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.