A wunderkammer hidden on the top floor of the Hartford statehouse.

More than a century of radio history is told in these displays.

A preserved trolley track that was transformed into a museum of transportation.

The site of the first "historically true" UFO encounter in the U.S.

It was founded by Ralph Nader to educate the public about an often-maligned area of law.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

This small-town library was the first in the world to be entirely supported by taxation.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Western New York's largest independent bookstore doubles as a historical repository of all things Niagara Falls.

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

This unusual building straddles two countries.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

The Burnside Fountain and its questionable interpretation.

This statue is a commemoration of the only place where Freud spoke in the United States.

A small obelisk commemorates the launch site of the world's first liquid-fueled rocket.

An architectural marvel that dates back to the zenith of Indian architecture.

Welcome to the home of the world's largest typewriter company.

An upstate New York garage advertises its services by literally putting the automobile above all else.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

An architectural marvel that combines Gothic architecture with Indian elements.

An extraordinary "City of Caves" carved from solid stone.

An abandoned desert hamlet swallowed up by sand.