A hugely vast Irish landscape of barren rock that stretches for miles.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

This spooky statue sits outside a famous Prague theater.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Marta Becket's hand-painted theater in the desert.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

Odd outsider art installations surround a Gold Rush-era ghost town.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

See massive fossils that are over 200 million years old in northeastern Arizona.

Quite simply the largest tree in the world (by volume).

The blinking light atop the iconic landmark has been sending secret messages for decades.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

It's good luck to be mocked by this monkey.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.