This artistic fountain display pays homage to this area's theatrical history.

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

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

A geothermal energy project gone wrong is fracturing the city's picturesque architecture.

A town that sets itself apart with supersized designer seating.

A futuristic rocket marks the spot where three borders meet.

The most impressive of Basel's three remaining city gates.

Washington's iconic carousel has a nice piece of Civil Rights history.

No one messes with the Massachusetts sacred cod, not this time...

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

An enormous, inside-out glass globe built in 1935.

An original apothecary from 1792.

2300-year-old Roman road connecting the empire.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A much-maligned monument to teetotalism.

The site of the climactic scene from the classic horror film is now a historic landmark.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

The house where John Wilkes Booth conspired with his co-conspirators.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

Home to items never before seen by the public.