Known as the site of 'El Dorado,' this mysterious lake is rumored to hold gold beneath its waters.

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

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

The most southern point you can drive to in the Western Hemisphere.

The southernmost postal office in South America.

One person’s lost luggage is another person’s treasure.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

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

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

Follow the steps, and this roadside artwork will teach you how to dance.

Live long and prosper in Tennessee.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.