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

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

The home of the Dead Sea Scrolls is an abstract modernist dream.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Buildings from the fictional planet of Tatooine still litter the Tunisian desert.

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

An ancient iron pillar in Delhi that seems to be rustproof.

This historic black and white monastery is one of Bulgaria's architectural jewels.

12th-century holy complex shares land with a natural park full of heavenly waterfalls and raptors.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A bathhouse from the second Islamic Caliphate decorated with frescoes of constellations, pleasure gardens, and naked ladies.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

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

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

One of Europe's oldest libraries.

This 11th century tower is said to be the oldest building in Oxford.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.