World's first "penitentiary," meant to be humane, drove men insane.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

The "Sultan of Swat" once attended a school at the site of this baseball field.

A museum dedicated to exhibiting remarkable outsider art.

Eighteen miniature death-scene dioramas.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

Where school buses go to die and be reborn as whimsical works of art.

In the early 1800s, surgery was also a show.

This rural island is home to the ghost town of what used to be the world’s biggest salt mine.

The arboretum whose marshy soil sucked up the dreams of housing developers.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A white oak with property rights.

Believed to be the oldest active college baseball field in America.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

This statue of one of baseball’s greatest pitchers looks like something out of a sci-fi horror movie.

The humble field where the first Major League Baseball game was played.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

At the point of oceanic inaccessibility, you can't get farther from dry land without leaving the planet.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.