This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

This nine-story building is the oldest standing skyscraper in D.C.

An abandoned asylum incorporated into a college campus.

The final resting place of the most famous sharpshooter.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

An office built to look like a giant basket.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

A single handprint, which, according to Ohio State University legend, cannot be scrubbed off.

An unassuming 13-acre park is home to over 12,000 roses.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.