This underground transport hub doubles as an art gallery.

The deepest metro station in the world.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

340-foot statue built to honour the Heroes of the Soviet Union.

Padlocks cover this rickety footbridge with love.

Featured in one of the most iconic scenes in cinema history.

Trace the history of the nation’s early days at the site of America’s oldest stock exchange.

This overlooked courtyard and museum celebrate Benjamin Franklin's life and achievements.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

The world's longest known cave system.

The highway's southernmost spot is a beloved local attraction.

Gargantuan home of Russian science.

This massive monument honors the first human in space.

The tallest hotel in Europe.

World's largest bell sits on the grounds of the Kremlin in Moscow.