This Mexico City subway station will make you feel like you've been transported to the London Underground.

An extravagant 18th-century fountain built with bits of broken ceramic.

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

This tiny 19th-century tunnel was built so a man could move his cows from one field to another.

The first full-scale tunnel built in America is short but scenic.

The secret city built by the Manhattan Project.

This replica of the Greek structure is in the heart of Nashville.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

The largest land animal skull ever discovered.

A no-frills cinephile haven known for showing offbeat, underseen films.