A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Museum dedicated to the terror regimes of Hungary.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Unusual building appears to be haphazardly built from randomly piled bricks.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

A marvel of Byzantine engineering under the streets of Istanbul.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

Furniture tries to escape an abandoned building in San Francisco.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

The Avenue of Mausolea is a series of grand palatial tombs.

Little Red Lighthouse under the George Washington Bridge.

A whimsical bridge adorned with decorative dragons.

A futuristic, brutalist masterpiece that is also strangely prison-like.

Time capsule of a museum, in which the Soviet Union remains alive and kicking.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Sumptous memorial to a controversial independence.

A fiery crater has been burning in the Karakum Desert since 1971.