A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

Ozymandias’ time-keeping temple.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The stunning interior of this Gothic church is covered in ornate gold details.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

The world's tallest aluminum statue is also the world's tallest image of a winged Virgin Mary.

The gondolas let you glimpse a bird's-eye view of one of the world's highest capital cities.

A swing to dangle you off the very edge.

More than 100 colorful residents stand post in this seaside Australian city.

Historic medieval fortified city in southwest France.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Paris' linguistic guide to the international language of, yes, love.

This church is said to have connections to the Knights Templars.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

Cathedral-like Victorian vaults are hidden within this iconic bridge.

One of Bristol's best-hidden gems has ties to Lord Byron, whence it became the nation's first reformatory school for girls.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.