An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

An ancient city exhumed from the depths of the ocean.

A natural swimming hole that was once a ceremonial center for Mayan priests.

The illuminated falls are a gem in North Cascades National Park.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

A beautiful Gilded Age hotel in the White Mountains with surprising diplomatic history.

This modern medieval weapon of war was built to toss pumpkins.

A 12,000-year-old bog boasting rare plants and fauna.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

According to the experts at the Guinness World's Record office, this is the longest candy counter in the world.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

This 150 foot seven-tiered cascading waterfall is one of the hidden gems of the White Mountains.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

Even Henry David Thoreau found this glacial pothole irresistible.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

A real (but thankfully not live) missile stands tall as a monument to the United States military in the small town of Cordele.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

A vast collection of rare, historical, and vintage supercomputers.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

Former villa and estate of James Deering developed to preserve native tropical forests.

When you can't get to the Pacific, just go to Florida.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

The first full-scale tunnel built in America is short but scenic.