With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

One of the last of the great 1920s movie palaces is a Floridian Greco-Spanish-Persian dreamscape.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

The non-native bovine herd was brought in to help conserve these Berlin wetlands.

This sprawling Jewish cemetery is one of the largest in Europe.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

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

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

This conical hill was built as a testing ground for an engineer known as the Glider King.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

A collection of abandoned typographic signs from Berlin and beyond.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A surreal museum of extraordinary industrial objects.

Started as a kitchen garden, now the second largest botanical garden in the world.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

An everyday Jackson Heights bodega conceals a Mexican seafood paradise.

Head past the aisles of tropical fruit and imported candy at this bodega to discover a hidden, weekends-only taco stand.

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

Sniff the Titan Arum's rotting flesh.