The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

This castle played host to the largest great hall found in medieval Central Europe.

Reportedly the "most handsome" market cross in Scotland.

Inside this reclamation yard is a unique collection of horse-drawn vehicles.

This tablet indicates where the tragic monarch returned to begin her tumultuous downfall.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

What many consider the original prime meridian and westernmost point of the old world.

This building features dozens of faces along its facade, although one is a bit chilling.

This woodland area is a lasting tribute to the Queen Mother.

These two strange cones are actually a system of old nautical navigation beacons.

A well preserved remnant of the English Civil War.

This tiny chapel atop a sea stack is dedicated to the patron saint of Ponza, Saint Silverius.

A southern Swedish island is home to the last ERSTA artillery battery, meant to protect the shoreline during the Cold War.

On the edge of the Valles Caldera National Preserve, these rock formations create an eerie landscape.

The location of a citizen uprising that led to a gruesome act of mob justice.

This stone harbor was key to Carnlough's limestone industry.

A memorial to a larger-than-life legend, inside a county that also holds Bunyan's death certificate.

These huge glacial erratics are humorously named after a much much smaller bird.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

This truck is celebrated as part of the "miracle" that connected this town to the rest of Mexico.

This park and coal mine heritage site is home to two of the last steam winding engines in the UK.

The temporary burial site of the man who shot and killed Jesse James.

New Zealand's most advertised nonexistent landmark