This floating cinema brings new meaning to the phrase "going out" to the movies.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

A fountain standing as a testament to a doomed alliance.

Ancient serpentine sacrifice holder that has stood the test of time.

The largest caravanserai in Cyprus also includes amazing examples of Ottoman architecture.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

The history of Mar Behnam Monastery is that of violence, intolerance, resiliency, and spirituality.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

This curious, round temple is the oldest still-standing marble building in Rome.

This burial cave houses around 100 ancient coffins, neatly stacked to form a massive wall.

This monument is a stark reminder of the horrors of the Zanzibar slave trade.

Hidden under the thick tropical vegetation of a cemetery is the tomb of Columbo Sahib.

This medieval wine press is one of the oldest in Cyprus.

An unusual double-stelae obelisk with ancient and mysterious origins.

The oldest hydroelectric plant in Czechia is now a museum.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

According to Hindu belief, this shallow island chain was created by a god with an army of monkeys.

Qshla Koya is an Ottoman fortress located on a hillock in the central quarter of Koya.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Singapore's landscaping project is home to 18 incredible Supertrees.

The busy transport hub is home to the tallest airport slide in the world.

This historic street in Quito is known for its seven stone crosses—and one presidential assassination.