This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The only quarter of the Old City not dedicated to a major world religion.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

A cluster of headless, armless sculptures looms within a popular Polish park.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This narrow street is packed with street vendors and bars selling chicha.

A museum built around a bus-sized fossil on the side of the highway.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

This whimsical home made entirely from clay is basically a giant piece of pottery.

Cathedral carved out of salt, located a mile below the Earth's surface.

The 10th-tallest pyramid in the world, this former sports arena is now home to a massive Bass Pro Shops store.

This quirky local sculpture is quite literally a fish out of water.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

This popular park is home to a sea serpent sculpture that now overshadows the twisted history of its creation.

The small cave that housed Tennessee's "first citizen."

This historic train station has been converted to a locomotive themed hotel.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This replica of the Greek structure is in the heart of Nashville.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

At this beautifully preserved Pre-Hispanic site, you can see ancient petroglyphs with depictions of llamas and alpacas.