These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A tiny Greek Orthodox church from the Ottoman era hides on a busy city street.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

An ancient octagonal weather station named for the eight Greek gods of wind.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The only quarter of the Old City not dedicated to a major world religion.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A magical oasis in the middle of the Negev 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.

A temple belonging to the largest Buddhist order in South Korea nestled in the middle of New York City.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

No monkeying around, this fountain was really named after the classic sci-fi film.

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

A Manhattan office building is home to the world's largest chess board.