Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

Spectacular views await visitors to this lake.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This playground sculpture of an icon from the past is dedicated to the children of the future.

This theatre and its amazing marquee harken back to the Golden Age of Hollywood.

10,000 flowered plants bloom in the City of Roses.

This sandstone mansion was the home of two of Oregon's most important pioneers.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home to the only outdoor municipal elevator in the United States.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Bug-devouring flora are the stars of a special wing of the glass conservatory.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

A relic from a forgotten bakery chain still spins atop a diner.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

A former major munitions plant that has been converted into a sprawling art space.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.

These unusual rooms on wheels are holdovers from the 1960s.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.