Shenandoah National Park
This 15.1-kilometer loop trail is famous for its strenuous 1.5-kilometer granite rock scramble requiring friction footing and no artificial ladders.
What is Old Rag Mountain?
This famous gorge features daring vertical iron ladders and suspended footboards (stupačky) positioned directly over waterfalls.
What is Suchá Belá?
This Apollo 11 commander manually piloted the lunar module Eagle over boulders with under 30 seconds of fuel remaining.
Who is Neil Armstrong?
Inspired by the Parthenon, this memorial features 36 fluted Doric columns representing the states in the Union at Lincoln's death
What is the Lincoln Memorial?
Flanked by the Capitol, the Washington Monument, and Smithsonian museums, this 3.2-kilometer landscaped park forms D.C.'s civic center.
What is the National Mall?
Making up over 50% of the park's upper slopes, northern red oaks and this specific oak species dominate the wind-swept ridges
What is the chestnut oak?
Slovak Paradise is characterized by this geological landscape, sculpted when mildly acidic rainwater slowly dissolves limestone and dolomite bedrock.
What is karst?
Working from Menlo Park, New Jersey, this light bulb and Direct Electric current inventor accumulated 1,093 patents and developed the Pearl Street urban electrical grid
Who is Thomas Edison?
A noticeable color demarcation at 152 feet on this 555-foot obelisk marks a 22-year halt caused by funding shortages and the Civil War.
What is the Washington Monument?
Amateur architect William Thornton won the design contest for this building, whose cornerstone was laid in 1793 by George Washington.
What is the United States Capitol?
To establish the national park in the 1920s and 1930s, over 450 mountain families were relocated through this legal power.
What is eminent domain?
This UNESCO World Heritage site inside the park contains 110,000 cubic meters of permanent glacial ice.
What is the Dobšinská Ice Cave?
In 1863, Abraham Lincoln issued this executive order declaring freedom for enslaved people in Confederate states.
What is the Emancipation Proclamation?
In 1884, the apex of the Washington Monument was capped with a 100-ounce tip made of this metal, considered precious at the time.
What is aluminum?
Thomas U. Walter designed the Capitol's 4,000-ton cast-iron dome, which was completed in 1866 during this period to symbolize national unity.
What is the American Civil War era?
Established in 1929 along the Rapidan River, this rustic retreat was used by President Herbert Hoover to fish for brook trout and host leaders.
What is Rapidan Camp?
Hikers in Slovak Paradise can visit the preserved 13th-century ruins of a Carthusian monastery at this historic location.
What is Kláštorisko?
Lincoln redefined democratic government in this 272-word Civil War speech delivered on a Pennsylvania battlefield.
What is the Gettysburg Address?
Carved from Atlantic Green granite by Lei Yixin, this 2011 monument brings to life the phrase "Stone of Hope".
What is the Martin Luther King Jr. Memorial?
Ratified in 1961, this constitutional amendment granted residents of Washington, D.C. three electors in presidential elections.
What is the 23rd Amendment?
During the Great Depression, 6,500 young men from this New Deal program built trails, planted trees, and carved Skyline Drive
What is the Civilian Conservation Corps (CCC)?
Alongside chamois and brown bears, this solitary feline predator is protected on the Slovak Red List within the park.
What is the Eurasian lynx?
In addition to inventing unpatented bifocals, this polymath was the only Founding Father to sign all four founding documents of the United States.
Who is Benjamin Franklin?
Designed by John Russell Pope, this neoclassical pantheon rotunda with 54 Ionic columns sits on the Tidal Basin surrounded by cherry trees.
What is the Jefferson Memorial?
Under Article I, Section 8 of the Constitution, this 1790 congressional act created the independent federal district to avoid state jurisdiction.
What is the Residence Act?