Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Just a man taking his prehistoric pet for a stroll.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A small park commemorates the departure of the first-ever successful transatlantic balloon voyage.

One of the largest wooden ships ever built is honored by a steel sculpture evoking her once-superlative scale.

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

This monument to the victims of a tragic explosion is said to turn and look at passing cars.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

Floor-to-ceiling frescoes by local art students cover the interior of a nearly 200-year-old church.

A nature and outdoor art preserve features the large-scale, abstract works of a renowned Maine folk artist.

The “Grand Canyon of Maine” is a three-mile gorge full of striking geological features.

A shoreline exhibit describing the disastrous first attempt by the French to colonize North America.

Grapes be damned, this distillery makes wine from apples, blueberries, cranberries, and more.

Dedicated to the explorer who opened Japan to the West.