One of the world's largest collections of pharmaceutical artifacts.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

There must be a pun in this haystack somewhere...

The Hudson River School comes alive at this palatial estate.

A bit of retro transportation flair preserved in the world's largest department store.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Elevated freight railway turned wildly successful urban park.

A terrific purveyor of natural history objects and curios.

This small-town pizzeria won the Hollywood lottery.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

The romance of early commercial flight still fills this Art Deco destination.

A former major munitions plant that has been converted into a sprawling art space.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

At 207 feet, one of the world's longest continuous escalators.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A historic covered bridge, only one of two remaining in North Carolina.