Narrowest house in Boston.

Statue commemorating the use of ether in anesthesia.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The massive machine creates cracking displays of indoor lightning.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

The 15-foot-wide, 2-ton pan fries hundreds of chickens once a year.

This North Carolina store preserves a historic moment in America's movement for racial equality.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

Artisans have been gathering in North Carolina since 1989 to show off whimsical takes on an everyday item.

A folk art mecca famous among outsider art fans.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

The humble horn finally finds a place in the sun.

This research center for rare prosimians is studying how they sleep to help prolong human life.

Memorial to a beloved puppeteer as well as all street performers.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

Underwater restaurant at the coral reefs of Eilat.

A family recipe is just one of several touches that make this Hebrew headstone special.

The world's only official college program focused on "clown therapy."

One of only three fountains created by the iconic architect Friedensreich Hundertwasser.