The mystery of this small, brick pond eluded its possibly only investigator until his death.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

The heads of two giant mythological water horses honor Scotland's horselord past.

This abandoned mausoleum from 1815 sits deep within the forest surrounding Callendar House.

Neon artworks light up this dark Edinburgh tunnel.

These characters from a Robert Louis Stevenson novel stand in an unlikely place.

This historical theme park celebrates all things noodle.

Bioluminescent firefly squid light up this Japanese fishing port.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Cold war icon and onetime "hole" in the iron curtain.

Metro station with a claim to rock n' roll fame.

Berlin's old airport.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A fascinating insight into daily life in the Eastern Bloc.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

The most visited, and possibly most controversial, museum in Germany.

A monument to the man who almost killed Hitler.