This museum offers an actual time machine back through Colorado's past.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Yo, Adrian!

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

A train station that was abandoned by the coal industry and converted into a cocktail bar. Now it’s home to the local visitor bureau.

The land is home to swimming ponies and a legendary 18th-century treasure.

The site of Paul Revere's historic two lantern warning.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

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

The first American department store, and home to the largest operating musical instrument in the world.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

Peek through the gates at this oasis from the city, full of Old English charm.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.