After years of being casually peed on by humans, this tree is peeing back.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

One of downtown Berlin's last reminders of its Communist past.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

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

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

A former Nazi lookout tower with a magnificent view of the Rhineland.

A famed artist's inspiring work of peace and tolerance.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

In Gloucester, Massachussets, fishermen celebrate a successful year at sea by charging a lubed pole to capture an Italian flag.

Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The loneliest island in New York.

An isolated beacon with a history of grisly murder and a view of some of literature's greatest inspirations.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

World Trade Center memorial likened to a woman's sexual organ.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

Along a busy beachfront strip you may hear Frank Sinatra singing from one boardwalk home.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.