This stunning mountain lake was named for a pair of tragic lovers whose statues stand at the center.

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

A section of the long chain that blocked enemy ships from entering Constantinople.

Iceland's tribute to its thankless civil servants.

The unusual sculptures are believed to be powerful political symbols.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

In Kazakhstan, a colorful cathedral with many lives once survived the most powerful earthquake in the region.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Small church on top of a huge rock column.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

The oldest surviving mosque in the UAE has mysterious origins and unusual architecture.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This indoor ski resort has a mountain contained inside a mall.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

The mysterious image is believed to show Edward Hyde, 3rd Earl of Clarendon, in a beautiful blue dress.

Ancient barriers wrap around what was once an important stop along the Silk Road.

A collaborative art project that transformed a neighborhood in NYC's Queens.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

The first piece of public art dedicated to LGBT rights.

A building facade covered with the statues of 11 giants of Tajik literature.

An exceptional assortment of fossils recovered from private collections.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.