One of the first intercontinental ballistic missile sites in the United States.

Built by George III to observe the transit of Venus, this Georgian gem is a unique survivor in the Arcadian landscape of Richmond upon Thames.

In the mountains of West Virginia is this perfectly preserved Art Deco train station.

This fountain was commissioned by a mother grieving over her son's passing.

A billionaire heiress' menagerie of animals were lovingly laid to rest on the grounds of her former estate.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

Just outside the Naval Academy, Hell Point is a historical marker that could easily be the point where failed students wait for the bus.

This suburban park recalls the history of a famous tavern. Despite the name, it's no ordinary place!

Constructed in 1676, this stone memorial is believed to be the oldest veteran's memorial in the United States.

These winged Maya figures are the subject of speculation and conspiracies.

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

Though these human-made islands were constructed as an escape for the wealthy, they rarely see many visitors.

In the middle of a busy residential neighborhood, a small roofless church being reclaimed by nature.

An abandoned observatory in the middle of the Illinois prairie.

The remains of the last Gonzaga villa, a luxurious palace built in spite of an economic crisis.

According to one story, this burial mound is made up of stones that represent the casualties of a major battle.

Parts of this former military training ground may have inspired parts of J.R.R. Tolkien's famous fantasy series.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

One of the oldest standing structures in Montgomery County, Maryland.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

This pagoda was once the central feature of a Buddhist temple that no longer exists.

A failed infrastructure project now owns this unique moniker.