A castle built by an eccentric medieval enthusiast in rural Ohio.

Take a drunken tour inside the world's largest known geode.

The angel of death appears to weep black tears at this grave marker.

The largest earthwork effigy in the world.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

An abandoned relic of the city's failed experiment with below ground transit.

Where beautiful signs live on forever.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

The entrance to this sinisterly named tunnel hides behind a Tim Hortons.

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

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

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

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

The king of U.S. high points towers over every other peak on the continent.

The highest point in Washington state is a volcano covered in glaciers.

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

The only pachinko parlor in the United States.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.

This handcrafted, old western-style town is filled with deserted cars, retired movie props, and other forms of Americana.

Divinely-inspired village houses 6,000 dolls, plus strange and lovely outsider art.

A mailbox that saved a nature reserve.

Replica of an old Esso filling station, complete with Wayne gravity pump and outhouse.

This historic museum is home to a rare Confederate Chester Gun.