A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

An eccentric playboy's astounding natural history collection.

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

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

This 19th-century hotel and spa hosted famous guests like like the Vanderbilt family, William Waldorf Astor, Helen Keller, and Jay Gould.

A memorial commemorating the place where Truman gave the order to deploy the first nuclear bombs on Japan.

This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

A well-preserved sheepherding camp now lies in the heart of the Granite Chief Wilderness, in the high Sierra Nevada.

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

In 1932, Americans honored their first president's 200th birthday by planting trees.

It is one of the few places in Rochester that has both Union and Confederate soldiers buried and honored.

This alleyway was named to honor the memory of a beloved local dog.

A long-worshipped mountain, considered a "power spot" and suspected to be an ancient pyramid by some.

The home of a former Minor League baseball team that beat Joe DiMaggio's New York Yankees in 1949.

The only natural cave bath in all of Europe.

An out-of-the-way wildlife haven with a rich and storied past of harboring thousands of fugitive slaves, or "Maroons" during the mid 1800s.

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

Outside a small brewery, a Gothic fountain that once provided water to thirsty horses.

This Miami cemetery holds the remains of two Cuban presidents, a Nicaraguan president, and the senior Desi Arnaz. And it was once the resting place of the crown prince of Spain.

Mass grave of 50 unidentified French Soldiers who died at the Siege of Yorktown, 1781, that gave victory to the American Revolution.

The site of Stockholm's last public execution.

This roadside stand claims to be the world's smallest bookstore.

The poet Walt Whitman was a frequent visitor to this spot, the highest on Long Island.

The famed poet was born in 1819 in a farmhouse built by his father.