This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

Elevated freight railway turned wildly successful urban park.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

A speakeasy takes on Chicago's drinking culture.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

The phone booths of New York City have all but disappeared, but their remains were once found in this "graveyard," sadly now removed as well.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

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

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

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

Tiny memorials honor individual victims of the Holocaust.

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

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

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

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.